diff --git a/.cspell.json b/.cspell.json
index e6c6f1fa0a..9bcb16b2b7 100644
--- a/.cspell.json
+++ b/.cspell.json
@@ -104,6 +104,7 @@
     "reactjs",
     "recid",
     "rlnrelay",
+    "rlnv",
     "roadmap",
     "sandboxed",
     "scanf",
@@ -132,7 +133,9 @@
     "upgrader",
     "vacp",
     "varint",
+    "viem",
     "vkey",
+    "wagmi",
     "waku",
     "wakuconnect",
     "wakunode",
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 07654a4a3b..ec99cc2f40 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -116,6 +116,28 @@ jobs:
       - run: npm install
         if: ${{ steps.release.outputs.releases_created }}
 
+      - name: Setup Foundry
+        if: ${{ steps.release.outputs.releases_created }}
+        uses: foundry-rs/foundry-toolchain@v1
+        with:
+          version: nightly
+
+      - name: Generate RLN contract ABIs and verify build
+        if: ${{ steps.release.outputs.releases_created }}
+        run: |
+          cd packages/rln
+          npm run setup:contract-abi || {
+            echo "Failed to generate contract ABIs, marking @waku/rln as private to skip publishing"
+            node -e "const fs = require('fs'); const pkg = JSON.parse(fs.readFileSync('package.json', 'utf8')); pkg.private = true; fs.writeFileSync('package.json', JSON.stringify(pkg, null, 2));"
+            exit 0
+          }
+          npm run build || {
+            echo "Failed to build @waku/rln, marking as private to skip publishing"
+            node -e "const fs = require('fs'); const pkg = JSON.parse(fs.readFileSync('package.json', 'utf8')); pkg.private = true; fs.writeFileSync('package.json', JSON.stringify(pkg, null, 2));"
+            exit 0
+          }
+          cd ../..
+
       - run: npm run build
         if: ${{ steps.release.outputs.releases_created }}
 
diff --git a/.github/workflows/pre-release.yml b/.github/workflows/pre-release.yml
index 659676f47e..5ccf41befe 100644
--- a/.github/workflows/pre-release.yml
+++ b/.github/workflows/pre-release.yml
@@ -25,6 +25,26 @@ jobs:
 
           - run: npm install
 
+          - name: Setup Foundry
+            uses: foundry-rs/foundry-toolchain@v1
+            with:
+              version: nightly
+
+          - name: Generate RLN contract ABIs and verify build
+            run: |
+              cd packages/rln
+              npm run setup:contract-abi || {
+                echo "Failed to generate contract ABIs, marking @waku/rln as private to skip publishing"
+                node -e "const fs = require('fs'); const pkg = JSON.parse(fs.readFileSync('package.json', 'utf8')); pkg.private = true; fs.writeFileSync('package.json', JSON.stringify(pkg, null, 2));"
+                exit 0
+              }
+              npm run build || {
+                echo "Failed to build @waku/rln, marking as private to skip publishing"
+                node -e "const fs = require('fs'); const pkg = JSON.parse(fs.readFileSync('package.json', 'utf8')); pkg.private = true; fs.writeFileSync('package.json', JSON.stringify(pkg, null, 2));"
+                exit 0
+              }
+              cd ../..
+
           - run: npm run build
 
           - run: npm run publish -- --tag next
diff --git a/.gitignore b/.gitignore
index 1e6952cf2f..188172b1d3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -20,3 +20,4 @@ packages/discovery/mock_local_storage
 CLAUDE.md
 .env
 postgres-data/
+packages/rln/waku-rlnv2-contract/
diff --git a/package-lock.json b/package-lock.json
index 9bc9d3b4ed..912a4f0258 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -52,6 +52,12 @@
         "wscat": "^6.0.1"
       }
     },
+    "node_modules/@adraffy/ens-normalize": {
+      "version": "1.11.1",
+      "resolved": "https://registry.npmjs.org/@adraffy/ens-normalize/-/ens-normalize-1.11.1.tgz",
+      "integrity": "sha512-nhCBV3quEgesuf7c7KYfperqSS14T8bYuvJ8PcLJp6znkZpFc0AuW4qBtr8eKVyPPe/8RSr7sglCWPU5eaxwKQ==",
+      "license": "MIT"
+    },
     "node_modules/@ampproject/remapping": {
       "version": "2.3.0",
       "resolved": "https://registry.npmjs.org/@ampproject/remapping/-/remapping-2.3.0.tgz",
@@ -2654,164 +2660,6 @@
         "node": "^18.18.0 || ^20.9.0 || >=21.1.0"
       }
     },
-    "node_modules/@ethersproject/abi": {
-      "version": "5.8.0",
-      "resolved": "https://registry.npmjs.org/@ethersproject/abi/-/abi-5.8.0.tgz",
-      "integrity": "sha512-b9YS/43ObplgyV6SlyQsG53/vkSal0MNA1fskSC4mbnCMi8R+NkcH8K9FPYNESf6jUefBUniE4SOKms0E/KK1Q==",
-      "funding": [
-        {
-          "type": "individual",
-          "url": "https://gitcoin.co/grants/13/ethersjs-complete-simple-and-tiny-2"
-        },
-        {
-          "type": "individual",
-          "url": "https://www.buymeacoffee.com/ricmoo"
-        }
-      ],
-      "license": "MIT",
-      "dependencies": {
-        "@ethersproject/address": "^5.8.0",
-        "@ethersproject/bignumber": "^5.8.0",
-        "@ethersproject/bytes": "^5.8.0",
-        "@ethersproject/constants": "^5.8.0",
-        "@ethersproject/hash": "^5.8.0",
-        "@ethersproject/keccak256": "^5.8.0",
-        "@ethersproject/logger": "^5.8.0",
-        "@ethersproject/properties": "^5.8.0",
-        "@ethersproject/strings": "^5.8.0"
-      }
-    },
-    "node_modules/@ethersproject/abstract-provider": {
-      "version": "5.8.0",
-      "resolved": "https://registry.npmjs.org/@ethersproject/abstract-provider/-/abstract-provider-5.8.0.tgz",
-      "integrity": "sha512-wC9SFcmh4UK0oKuLJQItoQdzS/qZ51EJegK6EmAWlh+OptpQ/npECOR3QqECd8iGHC0RJb4WKbVdSfif4ammrg==",
-      "funding": [
-        {
-          "type": "individual",
-          "url": "https://gitcoin.co/grants/13/ethersjs-complete-simple-and-tiny-2"
-        },
-        {
-          "type": "individual",
-          "url": "https://www.buymeacoffee.com/ricmoo"
-        }
-      ],
-      "license": "MIT",
-      "dependencies": {
-        "@ethersproject/bignumber": "^5.8.0",
-        "@ethersproject/bytes": "^5.8.0",
-        "@ethersproject/logger": "^5.8.0",
-        "@ethersproject/networks": "^5.8.0",
-        "@ethersproject/properties": "^5.8.0",
-        "@ethersproject/transactions": "^5.8.0",
-        "@ethersproject/web": "^5.8.0"
-      }
-    },
-    "node_modules/@ethersproject/abstract-signer": {
-      "version": "5.8.0",
-      "resolved": "https://registry.npmjs.org/@ethersproject/abstract-signer/-/abstract-signer-5.8.0.tgz",
-      "integrity": "sha512-N0XhZTswXcmIZQdYtUnd79VJzvEwXQw6PK0dTl9VoYrEBxxCPXqS0Eod7q5TNKRxe1/5WUMuR0u0nqTF/avdCA==",
-      "funding": [
-        {
-          "type": "individual",
-          "url": "https://gitcoin.co/grants/13/ethersjs-complete-simple-and-tiny-2"
-        },
-        {
-          "type": "individual",
-          "url": "https://www.buymeacoffee.com/ricmoo"
-        }
-      ],
-      "license": "MIT",
-      "dependencies": {
-        "@ethersproject/abstract-provider": "^5.8.0",
-        "@ethersproject/bignumber": "^5.8.0",
-        "@ethersproject/bytes": "^5.8.0",
-        "@ethersproject/logger": "^5.8.0",
-        "@ethersproject/properties": "^5.8.0"
-      }
-    },
-    "node_modules/@ethersproject/address": {
-      "version": "5.8.0",
-      "resolved": "https://registry.npmjs.org/@ethersproject/address/-/address-5.8.0.tgz",
-      "integrity": "sha512-GhH/abcC46LJwshoN+uBNoKVFPxUuZm6dA257z0vZkKmU1+t8xTn8oK7B9qrj8W2rFRMch4gbJl6PmVxjxBEBA==",
-      "funding": [
-        {
-          "type": "individual",
-          "url": "https://gitcoin.co/grants/13/ethersjs-complete-simple-and-tiny-2"
-        },
-        {
-          "type": "individual",
-          "url": "https://www.buymeacoffee.com/ricmoo"
-        }
-      ],
-      "license": "MIT",
-      "dependencies": {
-        "@ethersproject/bignumber": "^5.8.0",
-        "@ethersproject/bytes": "^5.8.0",
-        "@ethersproject/keccak256": "^5.8.0",
-        "@ethersproject/logger": "^5.8.0",
-        "@ethersproject/rlp": "^5.8.0"
-      }
-    },
-    "node_modules/@ethersproject/base64": {
-      "version": "5.8.0",
-      "resolved": "https://registry.npmjs.org/@ethersproject/base64/-/base64-5.8.0.tgz",
-      "integrity": "sha512-lN0oIwfkYj9LbPx4xEkie6rAMJtySbpOAFXSDVQaBnAzYfB4X2Qr+FXJGxMoc3Bxp2Sm8OwvzMrywxyw0gLjIQ==",
-      "funding": [
-        {
-          "type": "individual",
-          "url": "https://gitcoin.co/grants/13/ethersjs-complete-simple-and-tiny-2"
-        },
-        {
-          "type": "individual",
-          "url": "https://www.buymeacoffee.com/ricmoo"
-        }
-      ],
-      "license": "MIT",
-      "dependencies": {
-        "@ethersproject/bytes": "^5.8.0"
-      }
-    },
-    "node_modules/@ethersproject/basex": {
-      "version": "5.8.0",
-      "resolved": "https://registry.npmjs.org/@ethersproject/basex/-/basex-5.8.0.tgz",
-      "integrity": "sha512-PIgTszMlDRmNwW9nhS6iqtVfdTAKosA7llYXNmGPw4YAI1PUyMv28988wAb41/gHF/WqGdoLv0erHaRcHRKW2Q==",
-      "funding": [
-        {
-          "type": "individual",
-          "url": "https://gitcoin.co/grants/13/ethersjs-complete-simple-and-tiny-2"
-        },
-        {
-          "type": "individual",
-          "url": "https://www.buymeacoffee.com/ricmoo"
-        }
-      ],
-      "license": "MIT",
-      "dependencies": {
-        "@ethersproject/bytes": "^5.8.0",
-        "@ethersproject/properties": "^5.8.0"
-      }
-    },
-    "node_modules/@ethersproject/bignumber": {
-      "version": "5.8.0",
-      "resolved": "https://registry.npmjs.org/@ethersproject/bignumber/-/bignumber-5.8.0.tgz",
-      "integrity": "sha512-ZyaT24bHaSeJon2tGPKIiHszWjD/54Sz8t57Toch475lCLljC6MgPmxk7Gtzz+ddNN5LuHea9qhAe0x3D+uYPA==",
-      "funding": [
-        {
-          "type": "individual",
-          "url": "https://gitcoin.co/grants/13/ethersjs-complete-simple-and-tiny-2"
-        },
-        {
-          "type": "individual",
-          "url": "https://www.buymeacoffee.com/ricmoo"
-        }
-      ],
-      "license": "MIT",
-      "dependencies": {
-        "@ethersproject/bytes": "^5.8.0",
-        "@ethersproject/logger": "^5.8.0",
-        "bn.js": "^5.2.1"
-      }
-    },
     "node_modules/@ethersproject/bytes": {
       "version": "5.8.0",
       "resolved": "https://registry.npmjs.org/@ethersproject/bytes/-/bytes-5.8.0.tgz",
@@ -2831,161 +2679,6 @@
         "@ethersproject/logger": "^5.8.0"
       }
     },
-    "node_modules/@ethersproject/constants": {
-      "version": "5.8.0",
-      "resolved": "https://registry.npmjs.org/@ethersproject/constants/-/constants-5.8.0.tgz",
-      "integrity": "sha512-wigX4lrf5Vu+axVTIvNsuL6YrV4O5AXl5ubcURKMEME5TnWBouUh0CDTWxZ2GpnRn1kcCgE7l8O5+VbV9QTTcg==",
-      "funding": [
-        {
-          "type": "individual",
-          "url": "https://gitcoin.co/grants/13/ethersjs-complete-simple-and-tiny-2"
-        },
-        {
-          "type": "individual",
-          "url": "https://www.buymeacoffee.com/ricmoo"
-        }
-      ],
-      "license": "MIT",
-      "dependencies": {
-        "@ethersproject/bignumber": "^5.8.0"
-      }
-    },
-    "node_modules/@ethersproject/contracts": {
-      "version": "5.8.0",
-      "resolved": "https://registry.npmjs.org/@ethersproject/contracts/-/contracts-5.8.0.tgz",
-      "integrity": "sha512-0eFjGz9GtuAi6MZwhb4uvUM216F38xiuR0yYCjKJpNfSEy4HUM8hvqqBj9Jmm0IUz8l0xKEhWwLIhPgxNY0yvQ==",
-      "funding": [
-        {
-          "type": "individual",
-          "url": "https://gitcoin.co/grants/13/ethersjs-complete-simple-and-tiny-2"
-        },
-        {
-          "type": "individual",
-          "url": "https://www.buymeacoffee.com/ricmoo"
-        }
-      ],
-      "license": "MIT",
-      "dependencies": {
-        "@ethersproject/abi": "^5.8.0",
-        "@ethersproject/abstract-provider": "^5.8.0",
-        "@ethersproject/abstract-signer": "^5.8.0",
-        "@ethersproject/address": "^5.8.0",
-        "@ethersproject/bignumber": "^5.8.0",
-        "@ethersproject/bytes": "^5.8.0",
-        "@ethersproject/constants": "^5.8.0",
-        "@ethersproject/logger": "^5.8.0",
-        "@ethersproject/properties": "^5.8.0",
-        "@ethersproject/transactions": "^5.8.0"
-      }
-    },
-    "node_modules/@ethersproject/hash": {
-      "version": "5.8.0",
-      "resolved": "https://registry.npmjs.org/@ethersproject/hash/-/hash-5.8.0.tgz",
-      "integrity": "sha512-ac/lBcTbEWW/VGJij0CNSw/wPcw9bSRgCB0AIBz8CvED/jfvDoV9hsIIiWfvWmFEi8RcXtlNwp2jv6ozWOsooA==",
-      "funding": [
-        {
-          "type": "individual",
-          "url": "https://gitcoin.co/grants/13/ethersjs-complete-simple-and-tiny-2"
-        },
-        {
-          "type": "individual",
-          "url": "https://www.buymeacoffee.com/ricmoo"
-        }
-      ],
-      "license": "MIT",
-      "dependencies": {
-        "@ethersproject/abstract-signer": "^5.8.0",
-        "@ethersproject/address": "^5.8.0",
-        "@ethersproject/base64": "^5.8.0",
-        "@ethersproject/bignumber": "^5.8.0",
-        "@ethersproject/bytes": "^5.8.0",
-        "@ethersproject/keccak256": "^5.8.0",
-        "@ethersproject/logger": "^5.8.0",
-        "@ethersproject/properties": "^5.8.0",
-        "@ethersproject/strings": "^5.8.0"
-      }
-    },
-    "node_modules/@ethersproject/hdnode": {
-      "version": "5.8.0",
-      "resolved": "https://registry.npmjs.org/@ethersproject/hdnode/-/hdnode-5.8.0.tgz",
-      "integrity": "sha512-4bK1VF6E83/3/Im0ERnnUeWOY3P1BZml4ZD3wcH8Ys0/d1h1xaFt6Zc+Dh9zXf9TapGro0T4wvO71UTCp3/uoA==",
-      "funding": [
-        {
-          "type": "individual",
-          "url": "https://gitcoin.co/grants/13/ethersjs-complete-simple-and-tiny-2"
-        },
-        {
-          "type": "individual",
-          "url": "https://www.buymeacoffee.com/ricmoo"
-        }
-      ],
-      "license": "MIT",
-      "dependencies": {
-        "@ethersproject/abstract-signer": "^5.8.0",
-        "@ethersproject/basex": "^5.8.0",
-        "@ethersproject/bignumber": "^5.8.0",
-        "@ethersproject/bytes": "^5.8.0",
-        "@ethersproject/logger": "^5.8.0",
-        "@ethersproject/pbkdf2": "^5.8.0",
-        "@ethersproject/properties": "^5.8.0",
-        "@ethersproject/sha2": "^5.8.0",
-        "@ethersproject/signing-key": "^5.8.0",
-        "@ethersproject/strings": "^5.8.0",
-        "@ethersproject/transactions": "^5.8.0",
-        "@ethersproject/wordlists": "^5.8.0"
-      }
-    },
-    "node_modules/@ethersproject/json-wallets": {
-      "version": "5.8.0",
-      "resolved": "https://registry.npmjs.org/@ethersproject/json-wallets/-/json-wallets-5.8.0.tgz",
-      "integrity": "sha512-HxblNck8FVUtNxS3VTEYJAcwiKYsBIF77W15HufqlBF9gGfhmYOJtYZp8fSDZtn9y5EaXTE87zDwzxRoTFk11w==",
-      "funding": [
-        {
-          "type": "individual",
-          "url": "https://gitcoin.co/grants/13/ethersjs-complete-simple-and-tiny-2"
-        },
-        {
-          "type": "individual",
-          "url": "https://www.buymeacoffee.com/ricmoo"
-        }
-      ],
-      "license": "MIT",
-      "dependencies": {
-        "@ethersproject/abstract-signer": "^5.8.0",
-        "@ethersproject/address": "^5.8.0",
-        "@ethersproject/bytes": "^5.8.0",
-        "@ethersproject/hdnode": "^5.8.0",
-        "@ethersproject/keccak256": "^5.8.0",
-        "@ethersproject/logger": "^5.8.0",
-        "@ethersproject/pbkdf2": "^5.8.0",
-        "@ethersproject/properties": "^5.8.0",
-        "@ethersproject/random": "^5.8.0",
-        "@ethersproject/strings": "^5.8.0",
-        "@ethersproject/transactions": "^5.8.0",
-        "aes-js": "3.0.0",
-        "scrypt-js": "3.0.1"
-      }
-    },
-    "node_modules/@ethersproject/keccak256": {
-      "version": "5.8.0",
-      "resolved": "https://registry.npmjs.org/@ethersproject/keccak256/-/keccak256-5.8.0.tgz",
-      "integrity": "sha512-A1pkKLZSz8pDaQ1ftutZoaN46I6+jvuqugx5KYNeQOPqq+JZ0Txm7dlWesCHB5cndJSu5vP2VKptKf7cksERng==",
-      "funding": [
-        {
-          "type": "individual",
-          "url": "https://gitcoin.co/grants/13/ethersjs-complete-simple-and-tiny-2"
-        },
-        {
-          "type": "individual",
-          "url": "https://www.buymeacoffee.com/ricmoo"
-        }
-      ],
-      "license": "MIT",
-      "dependencies": {
-        "@ethersproject/bytes": "^5.8.0",
-        "js-sha3": "0.8.0"
-      }
-    },
     "node_modules/@ethersproject/logger": {
       "version": "5.8.0",
       "resolved": "https://registry.npmjs.org/@ethersproject/logger/-/logger-5.8.0.tgz",
@@ -3002,143 +2695,6 @@
       ],
       "license": "MIT"
     },
-    "node_modules/@ethersproject/networks": {
-      "version": "5.8.0",
-      "resolved": "https://registry.npmjs.org/@ethersproject/networks/-/networks-5.8.0.tgz",
-      "integrity": "sha512-egPJh3aPVAzbHwq8DD7Po53J4OUSsA1MjQp8Vf/OZPav5rlmWUaFLiq8cvQiGK0Z5K6LYzm29+VA/p4RL1FzNg==",
-      "funding": [
-        {
-          "type": "individual",
-          "url": "https://gitcoin.co/grants/13/ethersjs-complete-simple-and-tiny-2"
-        },
-        {
-          "type": "individual",
-          "url": "https://www.buymeacoffee.com/ricmoo"
-        }
-      ],
-      "license": "MIT",
-      "dependencies": {
-        "@ethersproject/logger": "^5.8.0"
-      }
-    },
-    "node_modules/@ethersproject/pbkdf2": {
-      "version": "5.8.0",
-      "resolved": "https://registry.npmjs.org/@ethersproject/pbkdf2/-/pbkdf2-5.8.0.tgz",
-      "integrity": "sha512-wuHiv97BrzCmfEaPbUFpMjlVg/IDkZThp9Ri88BpjRleg4iePJaj2SW8AIyE8cXn5V1tuAaMj6lzvsGJkGWskg==",
-      "funding": [
-        {
-          "type": "individual",
-          "url": "https://gitcoin.co/grants/13/ethersjs-complete-simple-and-tiny-2"
-        },
-        {
-          "type": "individual",
-          "url": "https://www.buymeacoffee.com/ricmoo"
-        }
-      ],
-      "license": "MIT",
-      "dependencies": {
-        "@ethersproject/bytes": "^5.8.0",
-        "@ethersproject/sha2": "^5.8.0"
-      }
-    },
-    "node_modules/@ethersproject/properties": {
-      "version": "5.8.0",
-      "resolved": "https://registry.npmjs.org/@ethersproject/properties/-/properties-5.8.0.tgz",
-      "integrity": "sha512-PYuiEoQ+FMaZZNGrStmN7+lWjlsoufGIHdww7454FIaGdbe/p5rnaCXTr5MtBYl3NkeoVhHZuyzChPeGeKIpQw==",
-      "funding": [
-        {
-          "type": "individual",
-          "url": "https://gitcoin.co/grants/13/ethersjs-complete-simple-and-tiny-2"
-        },
-        {
-          "type": "individual",
-          "url": "https://www.buymeacoffee.com/ricmoo"
-        }
-      ],
-      "license": "MIT",
-      "dependencies": {
-        "@ethersproject/logger": "^5.8.0"
-      }
-    },
-    "node_modules/@ethersproject/providers": {
-      "version": "5.8.0",
-      "resolved": "https://registry.npmjs.org/@ethersproject/providers/-/providers-5.8.0.tgz",
-      "integrity": "sha512-3Il3oTzEx3o6kzcg9ZzbE+oCZYyY+3Zh83sKkn4s1DZfTUjIegHnN2Cm0kbn9YFy45FDVcuCLLONhU7ny0SsCw==",
-      "funding": [
-        {
-          "type": "individual",
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-      "version": "3.0.1",
-      "resolved": "https://registry.npmjs.org/scrypt-js/-/scrypt-js-3.0.1.tgz",
-      "integrity": "sha512-cdwTTnqPu0Hyvf5in5asVdZocVDTNRmR7XEcJuIzMjJeSHybHl7vpB66AzwTaIg6CLSbtjcxc8fqcySfnTkccA==",
-      "license": "MIT"
-    },
     "node_modules/semantic-release": {
       "version": "24.2.5",
       "resolved": "https://registry.npmjs.org/semantic-release/-/semantic-release-24.2.5.tgz",
@@ -31876,6 +31414,26 @@
       "devOptional": true,
       "license": "0BSD"
     },
+    "node_modules/tsx": {
+      "version": "4.20.6",
+      "resolved": "https://registry.npmjs.org/tsx/-/tsx-4.20.6.tgz",
+      "integrity": "sha512-ytQKuwgmrrkDTFP4LjR0ToE2nqgy886GpvRSpU0JAnrdBYppuY5rLkRUYPU1yCryb24SsKBTL/hlDQAEFVwtZg==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "esbuild": "~0.25.0",
+        "get-tsconfig": "^4.7.5"
+      },
+      "bin": {
+        "tsx": "dist/cli.mjs"
+      },
+      "engines": {
+        "node": ">=18.0.0"
+      },
+      "optionalDependencies": {
+        "fsevents": "~2.3.3"
+      }
+    },
     "node_modules/tweetnacl": {
       "version": "0.14.5",
       "resolved": "https://registry.npmjs.org/tweetnacl/-/tweetnacl-0.14.5.tgz",
@@ -32965,6 +32523,93 @@
         "node": ">= 0.8"
       }
     },
+    "node_modules/viem": {
+      "version": "2.38.4",
+      "resolved": "https://registry.npmjs.org/viem/-/viem-2.38.4.tgz",
+      "integrity": "sha512-qnyPNg6Lz1EEC86si/1dq7GlOyZVFHSgAW+p8Q31R5idnAYCOdTM2q5KLE4/ykMeMXzY0bnp5MWTtR/wjCtWmQ==",
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/wevm"
+        }
+      ],
+      "license": "MIT",
+      "dependencies": {
+        "@noble/curves": "1.9.1",
+        "@noble/hashes": "1.8.0",
+        "@scure/bip32": "1.7.0",
+        "@scure/bip39": "1.6.0",
+        "abitype": "1.1.0",
+        "isows": "1.0.7",
+        "ox": "0.9.6",
+        "ws": "8.18.3"
+      },
+      "peerDependencies": {
+        "typescript": ">=5.0.4"
+      },
+      "peerDependenciesMeta": {
+        "typescript": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/viem/node_modules/@noble/curves": {
+      "version": "1.9.1",
+      "resolved": "https://registry.npmjs.org/@noble/curves/-/curves-1.9.1.tgz",
+      "integrity": "sha512-k11yZxZg+t+gWvBbIswW0yoJlu8cHOC7dhunwOzoWH/mXGBiYyR4YY6hAEK/3EUs4UpB8la1RfdRpeGsFHkWsA==",
+      "license": "MIT",
+      "dependencies": {
+        "@noble/hashes": "1.8.0"
+      },
+      "engines": {
+        "node": "^14.21.3 || >=16"
+      },
+      "funding": {
+        "url": "https://paulmillr.com/funding/"
+      }
+    },
+    "node_modules/viem/node_modules/abitype": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/abitype/-/abitype-1.1.0.tgz",
+      "integrity": "sha512-6Vh4HcRxNMLA0puzPjM5GBgT4aAcFGKZzSgAXvuZ27shJP6NEpielTuqbBmZILR5/xd0PizkBGy5hReKz9jl5A==",
+      "license": "MIT",
+      "funding": {
+        "url": "https://github.com/sponsors/wevm"
+      },
+      "peerDependencies": {
+        "typescript": ">=5.0.4",
+        "zod": "^3.22.0 || ^4.0.0"
+      },
+      "peerDependenciesMeta": {
+        "typescript": {
+          "optional": true
+        },
+        "zod": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/viem/node_modules/ws": {
+      "version": "8.18.3",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-8.18.3.tgz",
+      "integrity": "sha512-PEIGCY5tSlUt50cqyMXfCzX+oOPqN0vuGqWzbcJ2xvnkzkq46oOpz7dQaTDBdfICb4N14+GARUDw2XV2N4tvzg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=10.0.0"
+      },
+      "peerDependencies": {
+        "bufferutil": "^4.0.1",
+        "utf-8-validate": ">=5.0.2"
+      },
+      "peerDependenciesMeta": {
+        "bufferutil": {
+          "optional": true
+        },
+        "utf-8-validate": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/void-elements": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/void-elements/-/void-elements-2.0.1.tgz",
@@ -33755,12 +33400,41 @@
       "version": "3.25.76",
       "resolved": "https://registry.npmjs.org/zod/-/zod-3.25.76.tgz",
       "integrity": "sha512-gzUt/qt81nXsFGKIFcC3YnfEAx5NkunCfnDlvuBSSFS02bcXu4Lmea0AFIUwbLWxWPx3d9p8S5QoaujKcNQxcQ==",
-      "dev": true,
+      "devOptional": true,
       "license": "MIT",
       "funding": {
         "url": "https://github.com/sponsors/colinhacks"
       }
     },
+    "node_modules/zustand": {
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/zustand/-/zustand-5.0.0.tgz",
+      "integrity": "sha512-LE+VcmbartOPM+auOjCCLQOsQ05zUTp8RkgwRzefUk+2jISdMMFnxvyTjA4YNWr5ZGXYbVsEMZosttuxUBkojQ==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=12.20.0"
+      },
+      "peerDependencies": {
+        "@types/react": ">=18.0.0",
+        "immer": ">=9.0.6",
+        "react": ">=18.0.0",
+        "use-sync-external-store": ">=1.2.0"
+      },
+      "peerDependenciesMeta": {
+        "@types/react": {
+          "optional": true
+        },
+        "immer": {
+          "optional": true
+        },
+        "react": {
+          "optional": true
+        },
+        "use-sync-external-store": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/zwitch": {
       "version": "2.0.4",
       "resolved": "https://registry.npmjs.org/zwitch/-/zwitch-2.0.4.tgz",
@@ -34377,12 +34051,6 @@
         "@esbuild/win32-x64": "0.21.5"
       }
     },
-    "packages/browser-tests/node_modules/js-sha3": {
-      "version": "0.9.3",
-      "resolved": "https://registry.npmjs.org/js-sha3/-/js-sha3-0.9.3.tgz",
-      "integrity": "sha512-BcJPCQeLg6WjEx3FE591wVAevlli8lxsxm9/FzV4HXkV49TmBH38Yvrpce6fjbADGMKFrBMGTqrVz3qPIZ88Gg==",
-      "license": "MIT"
-    },
     "packages/browser-tests/node_modules/undici-types": {
       "version": "6.19.8",
       "dev": true,
@@ -34553,10 +34221,6 @@
         }
       }
     },
-    "packages/enr/node_modules/js-sha3": {
-      "version": "0.9.3",
-      "license": "MIT"
-    },
     "packages/headless-tests": {
       "name": "@waku/headless-tests",
       "version": "0.1.0",
@@ -34625,10 +34289,6 @@
         "node": ">=22"
       }
     },
-    "packages/message-encryption/node_modules/js-sha3": {
-      "version": "0.9.3",
-      "license": "MIT"
-    },
     "packages/proto": {
       "name": "@waku/proto",
       "version": "0.0.15",
@@ -35092,6 +34752,7 @@
       "dependencies": {
         "@chainsafe/bls-keystore": "3.0.0",
         "@noble/hashes": "^1.2.0",
+        "@wagmi/core": "^2.22.1",
         "@waku/core": "^0.0.40",
         "@waku/utils": "^0.0.27",
         "@waku/zerokit-rln-wasm": "^0.2.1",
@@ -35100,10 +34761,10 @@
         "chai-spies": "^1.1.0",
         "chai-subset": "^1.6.0",
         "ethereum-cryptography": "^3.1.0",
-        "ethers": "^5.7.2",
         "lodash": "^4.17.21",
         "sinon": "^19.0.2",
-        "uuid": "^11.0.5"
+        "uuid": "^11.0.5",
+        "viem": "^2.38.4"
       },
       "devDependencies": {
         "@rollup/plugin-commonjs": "^25.0.7",
@@ -35114,12 +34775,14 @@
         "@types/deep-equal-in-any-order": "^1.0.4",
         "@types/lodash": "^4.17.15",
         "@types/sinon": "^17.0.3",
+        "@wagmi/cli": "^2.7.0",
         "@waku/build-utils": "^1.0.0",
         "@waku/interfaces": "0.0.34",
-        "@waku/message-encryption": "^0.0.38",
+        "@waku/message-encryption": "^0.0.37",
         "deep-equal-in-any-order": "^2.0.6",
         "fast-check": "^3.23.2",
-        "rollup-plugin-copy": "^3.5.0"
+        "rollup-plugin-copy": "^3.5.0",
+        "tsx": "^4.19.2"
       },
       "engines": {
         "node": ">=22"
@@ -35140,6 +34803,89 @@
         "@types/deep-eql": "*"
       }
     },
+    "packages/rln/node_modules/@waku/message-encryption": {
+      "version": "0.0.37",
+      "resolved": "https://registry.npmjs.org/@waku/message-encryption/-/message-encryption-0.0.37.tgz",
+      "integrity": "sha512-8WmDxVnitqzxWrKRHdmHmOKk81LBh0OE9uLFzBNxirmH9G4uDx0va3+S4lazgCQ4kT0zKrsN8VldX0BfePTVDQ==",
+      "dev": true,
+      "license": "MIT OR Apache-2.0",
+      "dependencies": {
+        "@noble/secp256k1": "^1.7.1",
+        "@waku/core": "0.0.39",
+        "@waku/interfaces": "0.0.34",
+        "@waku/proto": "0.0.14",
+        "@waku/utils": "0.0.27",
+        "debug": "^4.3.4",
+        "js-sha3": "^0.9.2",
+        "uint8arrays": "^5.0.1"
+      },
+      "engines": {
+        "node": ">=22"
+      }
+    },
+    "packages/rln/node_modules/@waku/message-encryption/node_modules/@waku/core": {
+      "version": "0.0.39",
+      "resolved": "https://registry.npmjs.org/@waku/core/-/core-0.0.39.tgz",
+      "integrity": "sha512-Vgb52md4GOzM5z9xfULzjN2tvVHKszFmj5zc2mVDoIgySH4cFBgDTHtVtGEwrFRFWadWYKBtpKBdmG3X+W7SNA==",
+      "dev": true,
+      "license": "MIT OR Apache-2.0",
+      "dependencies": {
+        "@libp2p/ping": "2.0.35",
+        "@noble/hashes": "^1.3.2",
+        "@waku/enr": "^0.0.33",
+        "@waku/interfaces": "0.0.34",
+        "@waku/proto": "0.0.14",
+        "@waku/utils": "0.0.27",
+        "debug": "^4.3.4",
+        "it-all": "^3.0.4",
+        "it-length-prefixed": "^9.0.4",
+        "it-pipe": "^3.0.1",
+        "uint8arraylist": "^2.4.3",
+        "uuid": "^9.0.0"
+      },
+      "engines": {
+        "node": ">=22"
+      },
+      "peerDependencies": {
+        "@multiformats/multiaddr": "^12.0.0",
+        "libp2p": "2.8.11"
+      },
+      "peerDependenciesMeta": {
+        "@multiformats/multiaddr": {
+          "optional": true
+        },
+        "libp2p": {
+          "optional": true
+        }
+      }
+    },
+    "packages/rln/node_modules/@waku/message-encryption/node_modules/uuid": {
+      "version": "9.0.1",
+      "resolved": "https://registry.npmjs.org/uuid/-/uuid-9.0.1.tgz",
+      "integrity": "sha512-b+1eJOlsR9K8HJpow9Ok3fiWOWSIcIzXodvv0rQjVoOVNpWMpxf1wZNpt4y9h10odCNrqnYp1OBzRktckBe3sA==",
+      "dev": true,
+      "funding": [
+        "https://github.com/sponsors/broofa",
+        "https://github.com/sponsors/ctavan"
+      ],
+      "license": "MIT",
+      "bin": {
+        "uuid": "dist/bin/uuid"
+      }
+    },
+    "packages/rln/node_modules/@waku/proto": {
+      "version": "0.0.14",
+      "resolved": "https://registry.npmjs.org/@waku/proto/-/proto-0.0.14.tgz",
+      "integrity": "sha512-8zKVHrKzzKQfZBVnpSmJ6G8H1Zd4Gqms1tj3L6K2WCE/NQDR8wJtFwziab3dJ/5rKUTjfPAWFJ57RN97ltzxGA==",
+      "dev": true,
+      "license": "MIT OR Apache-2.0",
+      "dependencies": {
+        "protons-runtime": "^5.4.0"
+      },
+      "engines": {
+        "node": ">=22"
+      }
+    },
     "packages/rln/node_modules/assertion-error": {
       "version": "2.0.1",
       "license": "MIT",
diff --git a/packages/rln/.eslintrc.cjs b/packages/rln/.eslintrc.cjs
index c49a7edc19..b274db12d2 100644
--- a/packages/rln/.eslintrc.cjs
+++ b/packages/rln/.eslintrc.cjs
@@ -3,5 +3,10 @@ module.exports = {
     tsconfigRootDir: __dirname,
     project: "./tsconfig.dev.json"
   },
-  ignorePatterns: ["src/resources/**/*"]
+  ignorePatterns: ["src/resources/**/*"],
+  overrides: [
+    {
+      files: ["*.config.ts", "*.config.js"]
+    }
+  ]
 };
diff --git a/packages/rln/README.md b/packages/rln/README.md
index 3de34d55a1..653cf4e998 100644
--- a/packages/rln/README.md
+++ b/packages/rln/README.md
@@ -12,6 +12,18 @@ This package provides RLN functionality for the Waku protocol, enabling rate-lim
 npm install @waku/rln
 ```
 
+## Smart Contract Type Generation
+
+We use `wagmi` to generate TypeScript bindings for interacting with the RLN smart contracts.
+
+When changes are pushed to the `waku-rlnv2-contract` repository, run the following script to fetch and build the latest contracts and generate the TypeScript bindings:
+
+```
+npm run setup:contract-abi
+```
+
+Note that we commit/bundle the generated typings, so it's not necessary to run this script unless the contracts are updated.
+
 ## Usage
 
 ```typescript
@@ -20,11 +32,6 @@ import { RLN } from '@waku/rln';
 // Usage examples coming soon
 ```
 
-## Constants
-
-- Implementation contract: 0xde2260ca49300357d5af4153cda0d18f7b3ea9b3
-- Proxy contract: 0xb9cd878c90e49f797b4431fbf4fb333108cb90e6
-
 ## License
 
-MIT OR Apache-2.0 
\ No newline at end of file
+MIT OR Apache-2.0 
diff --git a/packages/rln/generate_contract_abi.js b/packages/rln/generate_contract_abi.js
new file mode 100644
index 0000000000..5044cb5b41
--- /dev/null
+++ b/packages/rln/generate_contract_abi.js
@@ -0,0 +1,66 @@
+import { execSync } from "child_process";
+import { existsSync, rmSync } from "fs";
+import { dirname, join } from "path";
+import process from "process";
+import { fileURLToPath } from "url";
+
+// Get script directory (equivalent to BASH_SOURCE in bash)
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = dirname(__filename);
+
+const CONTRACT_DIR = join(__dirname, "waku-rlnv2-contract");
+const REPO_URL = "git@github.com:waku-org/waku-rlnv2-contract.git";
+
+/**
+ * Execute a shell command and print output in real-time
+ * @param {string} command - The command to execute
+ * @param {object} options - Options for execSync
+ */
+function exec(command, options = {}) {
+  execSync(command, {
+    stdio: "inherit",
+    cwd: options.cwd || __dirname,
+    ...options
+  });
+}
+
+async function main() {
+  try {
+    console.log("📦 Setting up waku-rlnv2-contract...");
+
+    // Remove existing directory if it exists
+    if (existsSync(CONTRACT_DIR)) {
+      console.log("🗑️  Removing existing waku-rlnv2-contract directory...");
+      rmSync(CONTRACT_DIR, { recursive: true, force: true });
+    }
+
+    // Clone the repository
+    console.log("📥 Cloning waku-rlnv2-contract...");
+    exec(`git clone ${REPO_URL} ${CONTRACT_DIR}`);
+
+    // Install dependencies
+    console.log("📦 Installing dependencies...");
+    exec("npm install", { cwd: CONTRACT_DIR });
+
+    // Build contracts with Foundry
+    console.log("🔨 Building contracts with Foundry...");
+    exec("forge build", { cwd: CONTRACT_DIR });
+
+    // Generate ABIs with wagmi
+    console.log("⚙️  Generating ABIs with wagmi...");
+    exec("npx wagmi generate");
+
+    console.log("✅ Contract ABIs generated successfully!");
+  } catch (error) {
+    console.log(
+      "❌ Error generating contract ABIs:",
+      error instanceof Error ? error.message : error
+    );
+    process.exit(1);
+  }
+}
+
+main().catch((error) => {
+  console.log(error);
+  process.exit(1);
+});
diff --git a/packages/rln/package.json b/packages/rln/package.json
index 6d1962b6a0..45f074cf29 100644
--- a/packages/rln/package.json
+++ b/packages/rln/package.json
@@ -43,7 +43,8 @@
     "watch:build": "tsc -p tsconfig.json -w",
     "watch:test": "mocha --watch",
     "prepublish": "npm run build",
-    "reset-hard": "git clean -dfx -e .idea && git reset --hard && npm i && npm run build"
+    "reset-hard": "git clean -dfx -e .idea && git reset --hard && npm i && npm run build",
+    "setup:contract-abi": "node generate_contract_abi.js"
   },
   "engines": {
     "node": ">=22"
@@ -54,12 +55,13 @@
     "@rollup/plugin-node-resolve": "^15.2.3",
     "@types/chai": "^5.0.1",
     "@types/chai-spies": "^1.0.6",
-    "@waku/interfaces": "0.0.34",
     "@types/deep-equal-in-any-order": "^1.0.4",
     "@types/lodash": "^4.17.15",
     "@types/sinon": "^17.0.3",
+    "@wagmi/cli": "^2.7.0",
     "@waku/build-utils": "^1.0.0",
-    "@waku/message-encryption": "^0.0.38",
+    "@waku/interfaces": "0.0.34",
+    "@waku/message-encryption": "^0.0.37",
     "deep-equal-in-any-order": "^2.0.6",
     "fast-check": "^3.23.2",
     "rollup-plugin-copy": "^3.5.0"
@@ -76,18 +78,19 @@
   ],
   "dependencies": {
     "@chainsafe/bls-keystore": "3.0.0",
+    "@noble/hashes": "^1.2.0",
+    "@wagmi/core": "^2.22.1",
     "@waku/core": "^0.0.40",
     "@waku/utils": "^0.0.27",
-    "@noble/hashes": "^1.2.0",
     "@waku/zerokit-rln-wasm": "^0.2.1",
-    "ethereum-cryptography": "^3.1.0",
-    "ethers": "^5.7.2",
-    "lodash": "^4.17.21",
-    "uuid": "^11.0.5",
     "chai": "^5.1.2",
     "chai-as-promised": "^8.0.1",
     "chai-spies": "^1.1.0",
     "chai-subset": "^1.6.0",
-    "sinon": "^19.0.2"
+    "ethereum-cryptography": "^3.1.0",
+    "lodash": "^4.17.21",
+    "sinon": "^19.0.2",
+    "uuid": "^11.0.5",
+    "viem": "^2.38.4"
   }
 }
diff --git a/packages/rln/src/contract/abi/price_calculator.ts b/packages/rln/src/contract/abi/price_calculator.ts
deleted file mode 100644
index 8199e7764b..0000000000
--- a/packages/rln/src/contract/abi/price_calculator.ts
+++ /dev/null
@@ -1,93 +0,0 @@
-export const PRICE_CALCULATOR_ABI = [
-  {
-    inputs: [
-      { internalType: "address", name: "_token", type: "address" },
-      {
-        internalType: "uint256",
-        name: "_pricePerMessagePerEpoch",
-        type: "uint256"
-      }
-    ],
-    stateMutability: "nonpayable",
-    type: "constructor"
-  },
-  { inputs: [], name: "OnlyTokensAllowed", type: "error" },
-  {
-    anonymous: false,
-    inputs: [
-      {
-        indexed: true,
-        internalType: "address",
-        name: "previousOwner",
-        type: "address"
-      },
-      {
-        indexed: true,
-        internalType: "address",
-        name: "newOwner",
-        type: "address"
-      }
-    ],
-    name: "OwnershipTransferred",
-    type: "event"
-  },
-  {
-    inputs: [{ internalType: "uint32", name: "_rateLimit", type: "uint32" }],
-    name: "calculate",
-    outputs: [
-      { internalType: "address", name: "", type: "address" },
-      { internalType: "uint256", name: "", type: "uint256" }
-    ],
-    stateMutability: "view",
-    type: "function"
-  },
-  {
-    inputs: [],
-    name: "owner",
-    outputs: [{ internalType: "address", name: "", type: "address" }],
-    stateMutability: "view",
-    type: "function"
-  },
-  {
-    inputs: [],
-    name: "pricePerMessagePerEpoch",
-    outputs: [{ internalType: "uint256", name: "", type: "uint256" }],
-    stateMutability: "view",
-    type: "function"
-  },
-  {
-    inputs: [],
-    name: "renounceOwnership",
-    outputs: [],
-    stateMutability: "nonpayable",
-    type: "function"
-  },
-  {
-    inputs: [
-      { internalType: "address", name: "_token", type: "address" },
-      {
-        internalType: "uint256",
-        name: "_pricePerMessagePerEpoch",
-        type: "uint256"
-      }
-    ],
-    name: "setTokenAndPrice",
-    outputs: [],
-    stateMutability: "nonpayable",
-    type: "function"
-  },
-  {
-    inputs: [],
-    name: "token",
-    outputs: [{ internalType: "address", name: "", type: "address" }],
-    stateMutability: "view",
-    type: "function"
-  },
-  {
-    inputs: [{ internalType: "address", name: "newOwner", type: "address" }],
-    name: "transferOwnership",
-    outputs: [],
-    stateMutability: "nonpayable",
-    type: "function"
-  }
-];
diff --git a/packages/rln/src/contract/abi/rln.ts b/packages/rln/src/contract/abi/rln.ts
deleted file mode 100644
index 858ec25de5..0000000000
--- a/packages/rln/src/contract/abi/rln.ts
+++ /dev/null
@@ -1,646 +0,0 @@
-export const RLN_ABI = [
-  { inputs: [], stateMutability: "nonpayable", type: "constructor" },
-  {
-    inputs: [
-      { internalType: "uint256", name: "idCommitment", type: "uint256" }
-    ],
-    name: "CannotEraseActiveMembership",
-    type: "error"
-  },
-  { inputs: [], name: "CannotExceedMaxTotalRateLimit", type: "error" },
-  {
-    inputs: [
-      { internalType: "uint256", name: "idCommitment", type: "uint256" }
-    ],
-    name: "CannotExtendNonGracePeriodMembership",
-    type: "error"
-  },
-  {
-    inputs: [
-      { internalType: "uint256", name: "idCommitment", type: "uint256" }
-    ],
-    name: "InvalidIdCommitment",
-    type: "error"
-  },
-  { inputs: [], name: "InvalidMembershipRateLimit", type: "error" },
-  {
-    inputs: [
-      { internalType: "uint256", name: "startIndex", type: "uint256" },
-      { internalType: "uint256", name: "endIndex", type: "uint256" }
-    ],
-    name: "InvalidPaginationQuery",
-    type: "error"
-  },
-  {
-    inputs: [
-      { internalType: "uint256", name: "idCommitment", type: "uint256" }
-    ],
-    name: "MembershipDoesNotExist",
-    type: "error"
-  },
-  {
-    inputs: [
-      { internalType: "uint256", name: "idCommitment", type: "uint256" }
-    ],
-    name: "NonHolderCannotEraseGracePeriodMembership",
-    type: "error"
-  },
-  {
-    inputs: [
-      { internalType: "uint256", name: "idCommitment", type: "uint256" }
-    ],
-    name: "NonHolderCannotExtend",
-    type: "error"
-  },
-  {
-    anonymous: false,
-    inputs: [
-      {
-        indexed: false,
-        internalType: "address",
-        name: "previousAdmin",
-        type: "address"
-      },
-      {
-        indexed: false,
-        internalType: "address",
-        name: "newAdmin",
-        type: "address"
-      }
-    ],
-    name: "AdminChanged",
-    type: "event"
-  },
-  {
-    anonymous: false,
-    inputs: [
-      {
-        indexed: true,
-        internalType: "address",
-        name: "beacon",
-        type: "address"
-      }
-    ],
-    name: "BeaconUpgraded",
-    type: "event"
-  },
-  {
-    anonymous: false,
-    inputs: [
-      { indexed: false, internalType: "uint8", name: "version", type: "uint8" }
-    ],
-    name: "Initialized",
-    type: "event"
-  },
-  {
-    anonymous: false,
-    inputs: [
-      {
-        indexed: false,
-        internalType: "uint256",
-        name: "idCommitment",
-        type: "uint256"
-      },
-      {
-        indexed: false,
-        internalType: "uint32",
-        name: "membershipRateLimit",
-        type: "uint32"
-      },
-      { indexed: false, internalType: "uint32", name: "index", type: "uint32" }
-    ],
-    name: "MembershipErased",
-    type: "event"
-  },
-  {
-    anonymous: false,
-    inputs: [
-      {
-        indexed: false,
-        internalType: "uint256",
-        name: "idCommitment",
-        type: "uint256"
-      },
-      {
-        indexed: false,
-        internalType: "uint32",
-        name: "membershipRateLimit",
-        type: "uint32"
-      },
-      { indexed: false, internalType: "uint32", name: "index", type: "uint32" }
-    ],
-    name: "MembershipExpired",
-    type: "event"
-  },
-  {
-    anonymous: false,
-    inputs: [
-      {
-        indexed: false,
-        internalType: "uint256",
-        name: "idCommitment",
-        type: "uint256"
-      },
-      {
-        indexed: false,
-        internalType: "uint32",
-        name: "membershipRateLimit",
-        type: "uint32"
-      },
-      { indexed: false, internalType: "uint32", name: "index", type: "uint32" },
-      {
-        indexed: false,
-        internalType: "uint256",
-        name: "newGracePeriodStartTimestamp",
-        type: "uint256"
-      }
-    ],
-    name: "MembershipExtended",
-    type: "event"
-  },
-  {
-    anonymous: false,
-    inputs: [
-      {
-        indexed: false,
-        internalType: "uint256",
-        name: "idCommitment",
-        type: "uint256"
-      },
-      {
-        indexed: false,
-        internalType: "uint256",
-        name: "membershipRateLimit",
-        type: "uint256"
-      },
-      { indexed: false, internalType: "uint32", name: "index", type: "uint32" }
-    ],
-    name: "MembershipRegistered",
-    type: "event"
-  },
-  {
-    anonymous: false,
-    inputs: [
-      {
-        indexed: true,
-        internalType: "address",
-        name: "previousOwner",
-        type: "address"
-      },
-      {
-        indexed: true,
-        internalType: "address",
-        name: "newOwner",
-        type: "address"
-      }
-    ],
-    name: "OwnershipTransferred",
-    type: "event"
-  },
-  {
-    anonymous: false,
-    inputs: [
-      {
-        indexed: true,
-        internalType: "address",
-        name: "implementation",
-        type: "address"
-      }
-    ],
-    name: "Upgraded",
-    type: "event"
-  },
-  {
-    inputs: [],
-    name: "MAX_MEMBERSHIP_SET_SIZE",
-    outputs: [{ internalType: "uint32", name: "", type: "uint32" }],
-    stateMutability: "view",
-    type: "function"
-  },
-  {
-    inputs: [],
-    name: "MERKLE_TREE_DEPTH",
-    outputs: [{ internalType: "uint8", name: "", type: "uint8" }],
-    stateMutability: "view",
-    type: "function"
-  },
-  {
-    inputs: [],
-    name: "Q",
-    outputs: [{ internalType: "uint256", name: "", type: "uint256" }],
-    stateMutability: "view",
-    type: "function"
-  },
-  {
-    inputs: [],
-    name: "activeDurationForNewMemberships",
-    outputs: [{ internalType: "uint32", name: "", type: "uint32" }],
-    stateMutability: "view",
-    type: "function"
-  },
-  {
-    inputs: [],
-    name: "currentTotalRateLimit",
-    outputs: [{ internalType: "uint256", name: "", type: "uint256" }],
-    stateMutability: "view",
-    type: "function"
-  },
-  {
-    inputs: [],
-    name: "deployedBlockNumber",
-    outputs: [{ internalType: "uint32", name: "", type: "uint32" }],
-    stateMutability: "view",
-    type: "function"
-  },
-  {
-    inputs: [
-      { internalType: "address", name: "holder", type: "address" },
-      { internalType: "address", name: "token", type: "address" }
-    ],
-    name: "depositsToWithdraw",
-    outputs: [{ internalType: "uint256", name: "balance", type: "uint256" }],
-    stateMutability: "view",
-    type: "function"
-  },
-  {
-    inputs: [
-      { internalType: "uint256[]", name: "idCommitments", type: "uint256[]" }
-    ],
-    name: "eraseMemberships",
-    outputs: [],
-    stateMutability: "nonpayable",
-    type: "function"
-  },
-  {
-    inputs: [
-      { internalType: "uint256[]", name: "idCommitments", type: "uint256[]" },
-      { internalType: "bool", name: "eraseFromMembershipSet", type: "bool" }
-    ],
-    name: "eraseMemberships",
-    outputs: [],
-    stateMutability: "nonpayable",
-    type: "function"
-  },
-  {
-    inputs: [
-      { internalType: "uint256[]", name: "idCommitments", type: "uint256[]" }
-    ],
-    name: "extendMemberships",
-    outputs: [],
-    stateMutability: "nonpayable",
-    type: "function"
-  },
-  {
-    inputs: [
-      { internalType: "uint256", name: "idCommitment", type: "uint256" }
-    ],
-    name: "getMembershipInfo",
-    outputs: [
-      { internalType: "uint32", name: "", type: "uint32" },
-      { internalType: "uint32", name: "", type: "uint32" },
-      { internalType: "uint256", name: "", type: "uint256" }
-    ],
-    stateMutability: "view",
-    type: "function"
-  },
-  {
-    inputs: [{ internalType: "uint40", name: "index", type: "uint40" }],
-    name: "getMerkleProof",
-    outputs: [{ internalType: "uint256[20]", name: "", type: "uint256[20]" }],
-    stateMutability: "view",
-    type: "function"
-  },
-  {
-    inputs: [
-      { internalType: "uint32", name: "startIndex", type: "uint32" },
-      { internalType: "uint32", name: "endIndex", type: "uint32" }
-    ],
-    name: "getRateCommitmentsInRangeBoundsInclusive",
-    outputs: [{ internalType: "uint256[]", name: "", type: "uint256[]" }],
-    stateMutability: "view",
-    type: "function"
-  },
-  {
-    inputs: [],
-    name: "gracePeriodDurationForNewMemberships",
-    outputs: [{ internalType: "uint32", name: "", type: "uint32" }],
-    stateMutability: "view",
-    type: "function"
-  },
-  {
-    inputs: [{ internalType: "uint256", name: "", type: "uint256" }],
-    name: "indicesOfLazilyErasedMemberships",
-    outputs: [{ internalType: "uint32", name: "", type: "uint32" }],
-    stateMutability: "view",
-    type: "function"
-  },
-  {
-    inputs: [
-      { internalType: "address", name: "_priceCalculator", type: "address" },
-      { internalType: "uint32", name: "_maxTotalRateLimit", type: "uint32" },
-      {
-        internalType: "uint32",
-        name: "_minMembershipRateLimit",
-        type: "uint32"
-      },
-      {
-        internalType: "uint32",
-        name: "_maxMembershipRateLimit",
-        type: "uint32"
-      },
-      { internalType: "uint32", name: "_activeDuration", type: "uint32" },
-      { internalType: "uint32", name: "_gracePeriod", type: "uint32" }
-    ],
-    name: "initialize",
-    outputs: [],
-    stateMutability: "nonpayable",
-    type: "function"
-  },
-  {
-    inputs: [
-      { internalType: "uint256", name: "_idCommitment", type: "uint256" }
-    ],
-    name: "isExpired",
-    outputs: [{ internalType: "bool", name: "", type: "bool" }],
-    stateMutability: "view",
-    type: "function"
-  },
-  {
-    inputs: [
-      { internalType: "uint256", name: "_idCommitment", type: "uint256" }
-    ],
-    name: "isInGracePeriod",
-    outputs: [{ internalType: "bool", name: "", type: "bool" }],
-    stateMutability: "view",
-    type: "function"
-  },
-  {
-    inputs: [
-      { internalType: "uint256", name: "idCommitment", type: "uint256" }
-    ],
-    name: "isInMembershipSet",
-    outputs: [{ internalType: "bool", name: "", type: "bool" }],
-    stateMutability: "view",
-    type: "function"
-  },
-  {
-    inputs: [
-      { internalType: "uint256", name: "idCommitment", type: "uint256" }
-    ],
-    name: "isValidIdCommitment",
-    outputs: [{ internalType: "bool", name: "", type: "bool" }],
-    stateMutability: "pure",
-    type: "function"
-  },
-  {
-    inputs: [{ internalType: "uint32", name: "rateLimit", type: "uint32" }],
-    name: "isValidMembershipRateLimit",
-    outputs: [{ internalType: "bool", name: "", type: "bool" }],
-    stateMutability: "view",
-    type: "function"
-  },
-  {
-    inputs: [],
-    name: "maxMembershipRateLimit",
-    outputs: [{ internalType: "uint32", name: "", type: "uint32" }],
-    stateMutability: "view",
-    type: "function"
-  },
-  {
-    inputs: [],
-    name: "maxTotalRateLimit",
-    outputs: [{ internalType: "uint32", name: "", type: "uint32" }],
-    stateMutability: "view",
-    type: "function"
-  },
-  {
-    inputs: [
-      { internalType: "uint256", name: "_idCommitment", type: "uint256" }
-    ],
-    name: "membershipExpirationTimestamp",
-    outputs: [{ internalType: "uint256", name: "", type: "uint256" }],
-    stateMutability: "view",
-    type: "function"
-  },
-  {
-    inputs: [
-      { internalType: "uint256", name: "idCommitment", type: "uint256" }
-    ],
-    name: "memberships",
-    outputs: [
-      { internalType: "uint256", name: "depositAmount", type: "uint256" },
-      { internalType: "uint32", name: "activeDuration", type: "uint32" },
-      {
-        internalType: "uint256",
-        name: "gracePeriodStartTimestamp",
-        type: "uint256"
-      },
-      { internalType: "uint32", name: "gracePeriodDuration", type: "uint32" },
-      { internalType: "uint32", name: "rateLimit", type: "uint32" },
-      { internalType: "uint32", name: "index", type: "uint32" },
-      { internalType: "address", name: "holder", type: "address" },
-      { internalType: "address", name: "token", type: "address" }
-    ],
-    stateMutability: "view",
-    type: "function"
-  },
-  {
-    inputs: [],
-    name: "merkleTree",
-    outputs: [
-      { internalType: "uint40", name: "maxIndex", type: "uint40" },
-      { internalType: "uint40", name: "numberOfLeaves", type: "uint40" }
-    ],
-    stateMutability: "view",
-    type: "function"
-  },
-  {
-    inputs: [],
-    name: "minMembershipRateLimit",
-    outputs: [{ internalType: "uint32", name: "", type: "uint32" }],
-    stateMutability: "view",
-    type: "function"
-  },
-  {
-    inputs: [],
-    name: "nextFreeIndex",
-    outputs: [{ internalType: "uint32", name: "", type: "uint32" }],
-    stateMutability: "view",
-    type: "function"
-  },
-  {
-    inputs: [],
-    name: "owner",
-    outputs: [{ internalType: "address", name: "", type: "address" }],
-    stateMutability: "view",
-    type: "function"
-  },
-  {
-    inputs: [],
-    name: "priceCalculator",
-    outputs: [
-      { internalType: "contract IPriceCalculator", name: "", type: "address" }
-    ],
-    stateMutability: "view",
-    type: "function"
-  },
-  {
-    inputs: [],
-    name: "proxiableUUID",
-    outputs: [{ internalType: "bytes32", name: "", type: "bytes32" }],
-    stateMutability: "view",
-    type: "function"
-  },
-  {
-    inputs: [
-      { internalType: "uint256", name: "idCommitment", type: "uint256" },
-      { internalType: "uint32", name: "rateLimit", type: "uint32" },
-      {
-        internalType: "uint256[]",
-        name: "idCommitmentsToErase",
-        type: "uint256[]"
-      }
-    ],
-    name: "register",
-    outputs: [],
-    stateMutability: "nonpayable",
-    type: "function"
-  },
-  {
-    inputs: [
-      { internalType: "address", name: "owner", type: "address" },
-      { internalType: "uint256", name: "deadline", type: "uint256" },
-      { internalType: "uint8", name: "v", type: "uint8" },
-      { internalType: "bytes32", name: "r", type: "bytes32" },
-      { internalType: "bytes32", name: "s", type: "bytes32" },
-      { internalType: "uint256", name: "idCommitment", type: "uint256" },
-      { internalType: "uint32", name: "rateLimit", type: "uint32" },
-      {
-        internalType: "uint256[]",
-        name: "idCommitmentsToErase",
-        type: "uint256[]"
-      }
-    ],
-    name: "registerWithPermit",
-    outputs: [],
-    stateMutability: "nonpayable",
-    type: "function"
-  },
-  {
-    inputs: [],
-    name: "renounceOwnership",
-    outputs: [],
-    stateMutability: "nonpayable",
-    type: "function"
-  },
-  {
-    inputs: [],
-    name: "root",
-    outputs: [{ internalType: "uint256", name: "", type: "uint256" }],
-    stateMutability: "view",
-    type: "function"
-  },
-  {
-    inputs: [
-      {
-        internalType: "uint32",
-        name: "_activeDurationForNewMembership",
-        type: "uint32"
-      }
-    ],
-    name: "setActiveDuration",
-    outputs: [],
-    stateMutability: "nonpayable",
-    type: "function"
-  },
-  {
-    inputs: [
-      {
-        internalType: "uint32",
-        name: "_gracePeriodDurationForNewMembership",
-        type: "uint32"
-      }
-    ],
-    name: "setGracePeriodDuration",
-    outputs: [],
-    stateMutability: "nonpayable",
-    type: "function"
-  },
-  {
-    inputs: [
-      {
-        internalType: "uint32",
-        name: "_maxMembershipRateLimit",
-        type: "uint32"
-      }
-    ],
-    name: "setMaxMembershipRateLimit",
-    outputs: [],
-    stateMutability: "nonpayable",
-    type: "function"
-  },
-  {
-    inputs: [
-      { internalType: "uint32", name: "_maxTotalRateLimit", type: "uint32" }
-    ],
-    name: "setMaxTotalRateLimit",
-    outputs: [],
-    stateMutability: "nonpayable",
-    type: "function"
-  },
-  {
-    inputs: [
-      {
-        internalType: "uint32",
-        name: "_minMembershipRateLimit",
-        type: "uint32"
-      }
-    ],
-    name: "setMinMembershipRateLimit",
-    outputs: [],
-    stateMutability: "nonpayable",
-    type: "function"
-  },
-  {
-    inputs: [
-      { internalType: "address", name: "_priceCalculator", type: "address" }
-    ],
-    name: "setPriceCalculator",
-    outputs: [],
-    stateMutability: "nonpayable",
-    type: "function"
-  },
-  {
-    inputs: [{ internalType: "address", name: "newOwner", type: "address" }],
-    name: "transferOwnership",
-    outputs: [],
-    stateMutability: "nonpayable",
-    type: "function"
-  },
-  {
-    inputs: [
-      { internalType: "address", name: "newImplementation", type: "address" }
-    ],
-    name: "upgradeTo",
-    outputs: [],
-    stateMutability: "nonpayable",
-    type: "function"
-  },
-  {
-    inputs: [
-      { internalType: "address", name: "newImplementation", type: "address" },
-      { internalType: "bytes", name: "data", type: "bytes" }
-    ],
-    name: "upgradeToAndCall",
-    outputs: [],
-    stateMutability: "payable",
-    type: "function"
-  },
-  {
-    inputs: [{ internalType: "address", name: "token", type: "address" }],
-    name: "withdraw",
-    outputs: [],
-    stateMutability: "nonpayable",
-    type: "function"
-  }
-];
diff --git a/packages/rln/src/contract/constants.ts b/packages/rln/src/contract/constants.ts
index 7869e65bc6..9e895424d1 100644
--- a/packages/rln/src/contract/constants.ts
+++ b/packages/rln/src/contract/constants.ts
@@ -1,16 +1,15 @@
-import { PRICE_CALCULATOR_ABI } from "./abi/price_calculator.js";
-import { RLN_ABI } from "./abi/rln.js";
+import { linearPriceCalculatorAbi, wakuRlnV2Abi } from "./wagmi/generated.js";
 
 export const RLN_CONTRACT = {
   chainId: 59141,
   address: "0xb9cd878c90e49f797b4431fbf4fb333108cb90e6",
-  abi: RLN_ABI
+  abi: wakuRlnV2Abi
 };
 
 export const PRICE_CALCULATOR_CONTRACT = {
   chainId: 59141,
   address: "0xBcfC0660Df69f53ab409F32bb18A3fb625fcE644",
-  abi: PRICE_CALCULATOR_ABI
+  abi: linearPriceCalculatorAbi
 };
 
 /**
diff --git a/packages/rln/src/contract/price_calculator.spec.ts b/packages/rln/src/contract/price_calculator.spec.ts
index 2b36585509..e2fa53b1ec 100644
--- a/packages/rln/src/contract/price_calculator.spec.ts
+++ b/packages/rln/src/contract/price_calculator.spec.ts
@@ -1,28 +1,39 @@
 import { expect, use } from "chai";
 import chaiAsPromised from "chai-as-promised";
-import { ethers } from "ethers";
 import sinon from "sinon";
 
 import { RLNBaseContract } from "./rln_base_contract.js";
 
 use(chaiAsPromised);
 
-function createMockRLNBaseContract(provider: any): RLNBaseContract {
+function createMockRLNBaseContract(
+  mockContract: any,
+  mockRpcClient: any
+): RLNBaseContract {
   const dummy = Object.create(RLNBaseContract.prototype);
-  dummy.contract = { provider };
+  dummy.contract = mockContract;
+  dummy.rpcClient = mockRpcClient;
   return dummy as RLNBaseContract;
 }
 
 describe("RLNBaseContract.getPriceForRateLimit (unit)", function () {
-  let provider: any;
-  let calculateStub: sinon.SinonStub;
-  let mockContractFactory: any;
+  let mockContract: any;
+  let mockRpcClient: any;
+  let priceCalculatorReadStub: sinon.SinonStub;
+  let readContractStub: sinon.SinonStub;
 
   beforeEach(() => {
-    provider = {};
-    calculateStub = sinon.stub();
-    mockContractFactory = function () {
-      return { calculate: calculateStub };
+    priceCalculatorReadStub = sinon.stub();
+    readContractStub = sinon.stub();
+
+    mockContract = {
+      read: {
+        priceCalculator: priceCalculatorReadStub
+      }
+    };
+
+    mockRpcClient = {
+      readContract: readContractStub
     };
   });
 
@@ -32,35 +43,53 @@ describe("RLNBaseContract.getPriceForRateLimit (unit)", function () {
 
   it("returns token and price for valid calculate", async () => {
     const fakeToken = "0x1234567890abcdef1234567890abcdef12345678";
-    const fakePrice = ethers.BigNumber.from(42);
-    calculateStub.resolves([fakeToken, fakePrice]);
+    const fakePrice = 42n;
+    const priceCalculatorAddress = "0xabcdef1234567890abcdef1234567890abcdef12";
+
+    priceCalculatorReadStub.resolves(priceCalculatorAddress);
+    readContractStub.resolves([fakeToken, fakePrice]);
+
+    const rlnBase = createMockRLNBaseContract(mockContract, mockRpcClient);
+    const result = await rlnBase.getPriceForRateLimit(20);
 
-    const rlnBase = createMockRLNBaseContract(provider);
-    const result = await rlnBase.getPriceForRateLimit(20, mockContractFactory);
     expect(result.token).to.equal(fakeToken);
-    expect(result.price).to.not.be.null;
-    if (result.price) {
-      expect(result.price.eq(fakePrice)).to.be.true;
-    }
-    expect(calculateStub.calledOnceWith(20)).to.be.true;
+    expect(result.price).to.equal(fakePrice);
+    expect(priceCalculatorReadStub.calledOnce).to.be.true;
+    expect(readContractStub.calledOnce).to.be.true;
+
+    const readContractCall = readContractStub.getCall(0);
+    expect(readContractCall.args[0]).to.deep.include({
+      address: priceCalculatorAddress,
+      functionName: "calculate",
+      args: [20]
+    });
   });
 
   it("throws if calculate throws", async () => {
-    calculateStub.rejects(new Error("fail"));
+    const priceCalculatorAddress = "0xabcdef1234567890abcdef1234567890abcdef12";
+
+    priceCalculatorReadStub.resolves(priceCalculatorAddress);
+    readContractStub.rejects(new Error("fail"));
+
+    const rlnBase = createMockRLNBaseContract(mockContract, mockRpcClient);
+    await expect(rlnBase.getPriceForRateLimit(20)).to.be.rejectedWith("fail");
 
-    const rlnBase = createMockRLNBaseContract(provider);
-    await expect(
-      rlnBase.getPriceForRateLimit(20, mockContractFactory)
-    ).to.be.rejectedWith("fail");
-    expect(calculateStub.calledOnceWith(20)).to.be.true;
+    expect(priceCalculatorReadStub.calledOnce).to.be.true;
+    expect(readContractStub.calledOnce).to.be.true;
   });
 
-  it("throws if calculate returns malformed data", async () => {
-    calculateStub.resolves([null, null]);
+  it("returns null values if calculate returns malformed data", async () => {
+    const priceCalculatorAddress = "0xabcdef1234567890abcdef1234567890abcdef12";
+
+    priceCalculatorReadStub.resolves(priceCalculatorAddress);
+    readContractStub.resolves([null, null]);
+
+    const rlnBase = createMockRLNBaseContract(mockContract, mockRpcClient);
+    const result = await rlnBase.getPriceForRateLimit(20);
 
-    const rlnBase = createMockRLNBaseContract(provider);
-    const result = await rlnBase.getPriceForRateLimit(20, mockContractFactory);
     expect(result.token).to.be.null;
     expect(result.price).to.be.null;
+    expect(priceCalculatorReadStub.calledOnce).to.be.true;
+    expect(readContractStub.calledOnce).to.be.true;
   });
 });
diff --git a/packages/rln/src/contract/rln_base_contract.ts b/packages/rln/src/contract/rln_base_contract.ts
index 9934360be3..75c4f7a4ef 100644
--- a/packages/rln/src/contract/rln_base_contract.ts
+++ b/packages/rln/src/contract/rln_base_contract.ts
@@ -1,92 +1,74 @@
 import { Logger } from "@waku/utils";
-import { ethers } from "ethers";
+import {
+  type Address,
+  decodeEventLog,
+  getContract,
+  type GetContractReturnType,
+  type Hash,
+  type PublicClient,
+  type WalletClient
+} from "viem";
 
 import { IdentityCredential } from "../identity.js";
-import { DecryptedCredentials } from "../keystore/types.js";
+import type { DecryptedCredentials } from "../keystore/types.js";
+import type { RpcClient } from "../utils/index.js";
 
-import { RLN_ABI } from "./abi/rln.js";
 import {
   DEFAULT_RATE_LIMIT,
-  PRICE_CALCULATOR_CONTRACT,
-  RATE_LIMIT_PARAMS
+  RATE_LIMIT_PARAMS,
+  RLN_CONTRACT
 } from "./constants.js";
 import {
-  CustomQueryOptions,
-  FetchMembersOptions,
-  Member,
   MembershipInfo,
-  MembershipRegisteredEvent,
   MembershipState,
-  RLNContractInitOptions
+  RLNContractOptions
 } from "./types.js";
+import { iPriceCalculatorAbi, wakuRlnV2Abi } from "./wagmi/generated.js";
 
 const log = new Logger("rln:contract:base");
 
 export class RLNBaseContract {
-  public contract: ethers.Contract;
-  private deployBlock: undefined | number;
+  public contract: GetContractReturnType<
+    typeof wakuRlnV2Abi,
+    PublicClient | WalletClient
+  >;
+  public rpcClient: RpcClient;
   private rateLimit: number;
   private minRateLimit?: number;
   private maxRateLimit?: number;
 
-  protected _members: Map<number, Member> = new Map();
-  private _membersFilter: ethers.EventFilter;
-  private _membershipErasedFilter: ethers.EventFilter;
-  private _membersExpiredFilter: ethers.EventFilter;
-
   /**
    * Private constructor for RLNBaseContract. Use static create() instead.
    */
-  protected constructor(options: RLNContractInitOptions) {
-    const {
-      address,
-      signer,
-      rateLimit = DEFAULT_RATE_LIMIT,
-      contract
-    } = options;
+  protected constructor(options: RLNContractOptions) {
+    const { address, rpcClient, rateLimit = DEFAULT_RATE_LIMIT } = options;
 
     log.info("Initializing RLNBaseContract", { address, rateLimit });
 
-    this.contract = contract || new ethers.Contract(address, RLN_ABI, signer);
+    this.rpcClient = rpcClient;
+    this.contract = getContract({
+      address,
+      abi: wakuRlnV2Abi,
+      client: this.rpcClient
+    });
     this.rateLimit = rateLimit;
-
-    try {
-      log.info("Setting up event filters");
-      // Initialize event filters
-      this._membersFilter = this.contract.filters.MembershipRegistered();
-      this._membershipErasedFilter = this.contract.filters.MembershipErased();
-      this._membersExpiredFilter = this.contract.filters.MembershipExpired();
-      log.info("Event filters initialized successfully");
-    } catch (error) {
-      log.error("Failed to initialize event filters", { error });
-      throw new Error(
-        "Failed to initialize event filters: " + (error as Error).message
-      );
-    }
-
-    // Initialize members and subscriptions
-    this.fetchMembers()
-      .then(() => {
-        this.subscribeToMembers();
-      })
-      .catch((error) => {
-        log.error("Failed to initialize members", { error });
-      });
   }
 
   /**
    * Static async factory to create and initialize RLNBaseContract
    */
   public static async create(
-    options: RLNContractInitOptions
+    options: RLNContractOptions
   ): Promise<RLNBaseContract> {
     const instance = new RLNBaseContract(options);
+
     const [min, max] = await Promise.all([
-      instance.contract.minMembershipRateLimit(),
-      instance.contract.maxMembershipRateLimit()
+      instance.contract.read.minMembershipRateLimit(),
+      instance.contract.read.maxMembershipRateLimit()
     ]);
-    instance.minRateLimit = ethers.BigNumber.from(min).toNumber();
-    instance.maxRateLimit = ethers.BigNumber.from(max).toNumber();
+
+    instance.minRateLimit = min;
+    instance.maxRateLimit = max;
 
     instance.validateRateLimit(instance.rateLimit);
     return instance;
@@ -106,13 +88,6 @@ export class RLNBaseContract {
     return this.contract.address;
   }
 
-  /**
-   * Gets the contract provider
-   */
-  public get provider(): ethers.providers.Provider {
-    return this.contract.provider;
-  }
-
   /**
    * Gets the minimum allowed rate limit (cached)
    */
@@ -136,8 +111,7 @@ export class RLNBaseContract {
    * @returns Promise<number> The maximum total rate limit in messages per epoch
    */
   public async getMaxTotalRateLimit(): Promise<number> {
-    const maxTotalRate = await this.contract.maxTotalRateLimit();
-    return maxTotalRate.toNumber();
+    return await this.contract.read.maxTotalRateLimit();
   }
 
   /**
@@ -145,8 +119,7 @@ export class RLNBaseContract {
    * @returns Promise<number> The current total rate limit usage in messages per epoch
    */
   public async getCurrentTotalRateLimit(): Promise<number> {
-    const currentTotal = await this.contract.currentTotalRateLimit();
-    return currentTotal.toNumber();
+    return Number(await this.contract.read.currentTotalRateLimit());
   }
 
   /**
@@ -154,11 +127,10 @@ export class RLNBaseContract {
    * @returns Promise<number> The remaining rate limit that can be allocated
    */
   public async getRemainingTotalRateLimit(): Promise<number> {
-    const [maxTotal, currentTotal] = await Promise.all([
-      this.contract.maxTotalRateLimit(),
-      this.contract.currentTotalRateLimit()
-    ]);
-    return Number(maxTotal) - Number(currentTotal);
+    return (
+      (await this.contract.read.maxTotalRateLimit()) -
+      Number(await this.contract.read.currentTotalRateLimit())
+    );
   }
 
   /**
@@ -170,233 +142,35 @@ export class RLNBaseContract {
     this.rateLimit = newRateLimit;
   }
 
-  public get members(): Member[] {
-    const sortedMembers = Array.from(this._members.values()).sort(
-      (left, right) => left.index.toNumber() - right.index.toNumber()
-    );
-    return sortedMembers;
-  }
-
-  public async fetchMembers(options: FetchMembersOptions = {}): Promise<void> {
-    const registeredMemberEvents = await RLNBaseContract.queryFilter(
-      this.contract,
-      {
-        fromBlock: this.deployBlock,
-        ...options,
-        membersFilter: this.membersFilter
-      }
-    );
-    const removedMemberEvents = await RLNBaseContract.queryFilter(
-      this.contract,
-      {
-        fromBlock: this.deployBlock,
-        ...options,
-        membersFilter: this.membershipErasedFilter
-      }
-    );
-    const expiredMemberEvents = await RLNBaseContract.queryFilter(
-      this.contract,
-      {
-        fromBlock: this.deployBlock,
-        ...options,
-        membersFilter: this.membersExpiredFilter
-      }
-    );
-
-    const events = [
-      ...registeredMemberEvents,
-      ...removedMemberEvents,
-      ...expiredMemberEvents
-    ];
-    this.processEvents(events);
-  }
-
-  public static async queryFilter(
-    contract: ethers.Contract,
-    options: CustomQueryOptions
-  ): Promise<ethers.Event[]> {
-    const FETCH_CHUNK = 5;
-    const BLOCK_RANGE = 3000;
-
-    const {
-      fromBlock,
-      membersFilter,
-      fetchRange = BLOCK_RANGE,
-      fetchChunks = FETCH_CHUNK
-    } = options;
-
-    if (fromBlock === undefined) {
-      return contract.queryFilter(membersFilter);
-    }
-
-    if (!contract.provider) {
-      throw Error("No provider found on the contract.");
-    }
-
-    const toBlock = await contract.provider.getBlockNumber();
-
-    if (toBlock - fromBlock < fetchRange) {
-      return contract.queryFilter(membersFilter, fromBlock, toBlock);
-    }
-
-    const events: ethers.Event[][] = [];
-    const chunks = RLNBaseContract.splitToChunks(
-      fromBlock,
-      toBlock,
-      fetchRange
-    );
-
-    for (const portion of RLNBaseContract.takeN<[number, number]>(
-      chunks,
-      fetchChunks
-    )) {
-      const promises = portion.map(([left, right]) =>
-        RLNBaseContract.ignoreErrors(
-          contract.queryFilter(membersFilter, left, right),
-          []
-        )
-      );
-      const fetchedEvents = await Promise.all(promises);
-      events.push(fetchedEvents.flatMap((v) => v));
-    }
-
-    return events.flatMap((v) => v);
-  }
-
-  public processEvents(events: ethers.Event[]): void {
-    const toRemoveTable = new Map<number, number[]>();
-    const toInsertTable = new Map<number, ethers.Event[]>();
-
-    events.forEach((evt) => {
-      if (!evt.args) {
-        return;
-      }
-
-      if (
-        evt.event === "MembershipErased" ||
-        evt.event === "MembershipExpired"
-      ) {
-        let index = evt.args.index;
-
-        if (!index) {
-          return;
-        }
-
-        if (typeof index === "number" || typeof index === "string") {
-          index = ethers.BigNumber.from(index);
-        }
-
-        const toRemoveVal = toRemoveTable.get(evt.blockNumber);
-        if (toRemoveVal != undefined) {
-          toRemoveVal.push(index.toNumber());
-          toRemoveTable.set(evt.blockNumber, toRemoveVal);
-        } else {
-          toRemoveTable.set(evt.blockNumber, [index.toNumber()]);
-        }
-      } else if (evt.event === "MembershipRegistered") {
-        let eventsPerBlock = toInsertTable.get(evt.blockNumber);
-        if (eventsPerBlock == undefined) {
-          eventsPerBlock = [];
-        }
-
-        eventsPerBlock.push(evt);
-        toInsertTable.set(evt.blockNumber, eventsPerBlock);
-      }
-    });
-  }
-
-  public static splitToChunks(
-    from: number,
-    to: number,
-    step: number
-  ): Array<[number, number]> {
-    const chunks: Array<[number, number]> = [];
-
-    let left = from;
-    while (left < to) {
-      const right = left + step < to ? left + step : to;
-
-      chunks.push([left, right] as [number, number]);
-
-      left = right;
-    }
-
-    return chunks;
-  }
-
-  public static *takeN<T>(array: T[], size: number): Iterable<T[]> {
-    let start = 0;
-
-    while (start < array.length) {
-      const portion = array.slice(start, start + size);
-
-      yield portion;
-
-      start += size;
-    }
-  }
-
-  public static async ignoreErrors<T>(
-    promise: Promise<T>,
-    defaultValue: T
-  ): Promise<T> {
-    try {
-      return await promise;
-    } catch (err: unknown) {
-      if (err instanceof Error) {
-        log.info(`Ignoring an error during query: ${err.message}`);
-      } else {
-        log.info(`Ignoring an unknown error during query`);
-      }
-      return defaultValue;
-    }
+  /**
+   * Gets the Merkle tree root for RLN proof verification
+   * @returns Promise<bigint> The Merkle tree root
+   *
+   */
+  public async getMerkleRoot(): Promise<bigint> {
+    return this.contract.read.root();
   }
 
-  public subscribeToMembers(): void {
-    this.contract.on(
-      this.membersFilter,
-      (
-        _idCommitment: bigint,
-        _membershipRateLimit: ethers.BigNumber,
-        _index: ethers.BigNumber,
-        event: ethers.Event
-      ) => {
-        this.processEvents([event]);
-      }
-    );
-
-    this.contract.on(
-      this.membershipErasedFilter,
-      (
-        _idCommitment: bigint,
-        _membershipRateLimit: ethers.BigNumber,
-        _index: ethers.BigNumber,
-        event: ethers.Event
-      ) => {
-        this.processEvents([event]);
-      }
-    );
-
-    this.contract.on(
-      this.membersExpiredFilter,
-      (
-        _idCommitment: bigint,
-        _membershipRateLimit: ethers.BigNumber,
-        _index: ethers.BigNumber,
-        event: ethers.Event
-      ) => {
-        this.processEvents([event]);
-      }
-    );
+  /**
+   * Gets the Merkle proof for a member at a given index
+   * @param index The index of the member in the membership set
+   * @returns Promise<bigint[]> Array of 20 Merkle proof elements
+   *
+   */
+  public async getMerkleProof(index: number): Promise<readonly bigint[]> {
+    return await this.contract.read.getMerkleProof([index]);
   }
 
   public async getMembershipInfo(
     idCommitmentBigInt: bigint
   ): Promise<MembershipInfo | undefined> {
     try {
-      const membershipData =
-        await this.contract.memberships(idCommitmentBigInt);
-      const currentBlock = await this.contract.provider.getBlockNumber();
+      const membershipData = await this.contract.read.memberships([
+        idCommitmentBigInt
+      ]);
+
+      const currentBlock = await this.rpcClient.getBlockNumber();
+
       const [
         depositAmount,
         activeDuration,
@@ -408,12 +182,13 @@ export class RLNBaseContract {
         token
       ] = membershipData;
 
-      const gracePeriodEnd = gracePeriodStartTimestamp.add(gracePeriodDuration);
+      const gracePeriodEnd =
+        Number(gracePeriodStartTimestamp) + Number(gracePeriodDuration);
 
       let state: MembershipState;
-      if (currentBlock < gracePeriodStartTimestamp.toNumber()) {
+      if (currentBlock < Number(gracePeriodStartTimestamp)) {
         state = MembershipState.Active;
-      } else if (currentBlock < gracePeriodEnd.toNumber()) {
+      } else if (currentBlock < gracePeriodEnd) {
         state = MembershipState.GracePeriod;
       } else {
         state = MembershipState.Expired;
@@ -422,9 +197,9 @@ export class RLNBaseContract {
       return {
         index,
         idCommitment: idCommitmentBigInt.toString(),
-        rateLimit: Number(rateLimit),
-        startBlock: gracePeriodStartTimestamp.toNumber(),
-        endBlock: gracePeriodEnd.toNumber(),
+        rateLimit: rateLimit,
+        startBlock: Number(gracePeriodStartTimestamp),
+        endBlock: gracePeriodEnd,
         state,
         depositAmount,
         activeDuration,
@@ -438,43 +213,75 @@ export class RLNBaseContract {
     }
   }
 
-  public async extendMembership(
-    idCommitmentBigInt: bigint
-  ): Promise<ethers.ContractTransaction> {
-    const tx = await this.contract.extendMemberships([idCommitmentBigInt]);
-    await tx.wait();
-    return tx;
+  public async extendMembership(idCommitmentBigInt: bigint): Promise<Hash> {
+    if (!this.rpcClient.account) {
+      throw new Error(
+        "Failed to extendMembership: no account set in wallet client"
+      );
+    }
+    try {
+      await this.contract.simulate.extendMemberships([[idCommitmentBigInt]], {
+        chain: this.rpcClient.chain,
+        account: this.rpcClient.account.address
+      });
+    } catch (err) {
+      throw new Error("Simulating extending membership failed: " + err);
+    }
+    const hash = await this.contract.write.extendMemberships(
+      [[idCommitmentBigInt]],
+      {
+        account: this.rpcClient.account,
+        chain: this.rpcClient.chain
+      }
+    );
+
+    await this.rpcClient.waitForTransactionReceipt({ hash });
+    return hash;
   }
 
   public async eraseMembership(
     idCommitmentBigInt: bigint,
     eraseFromMembershipSet: boolean = true
-  ): Promise<ethers.ContractTransaction> {
+  ): Promise<Hash> {
     if (
       !(await this.isExpired(idCommitmentBigInt)) ||
       !(await this.isInGracePeriod(idCommitmentBigInt))
     ) {
       throw new Error("Membership is not expired or in grace period");
     }
+    if (!this.rpcClient.account) {
+      throw new Error(
+        "Failed to eraseMembership: no account set in wallet client"
+      );
+    }
 
-    const estimatedGas = await this.contract.estimateGas[
-      "eraseMemberships(uint256[],bool)"
-    ]([idCommitmentBigInt], eraseFromMembershipSet);
-    const gasLimit = estimatedGas.add(10000);
+    try {
+      await this.contract.simulate.eraseMemberships(
+        [[idCommitmentBigInt], eraseFromMembershipSet],
+        {
+          chain: this.rpcClient.chain,
+          account: this.rpcClient.account.address
+        }
+      );
+    } catch (err) {
+      throw new Error("Error simulating eraseMemberships: " + err);
+    }
 
-    const tx = await this.contract["eraseMemberships(uint256[],bool)"](
-      [idCommitmentBigInt],
-      eraseFromMembershipSet,
-      { gasLimit }
+    const hash = await this.contract.write.eraseMemberships(
+      [[idCommitmentBigInt], eraseFromMembershipSet],
+      {
+        chain: this.rpcClient.chain,
+        account: this.rpcClient.account
+      }
     );
-    await tx.wait();
-    return tx;
+    await this.rpcClient.waitForTransactionReceipt({ hash });
+    return hash;
   }
 
   public async registerMembership(
     idCommitmentBigInt: bigint,
     rateLimit: number = DEFAULT_RATE_LIMIT
-  ): Promise<ethers.ContractTransaction> {
+  ): Promise<Hash> {
     if (
       rateLimit < RATE_LIMIT_PARAMS.MIN_RATE ||
       rateLimit > RATE_LIMIT_PARAMS.MAX_RATE
@@ -483,21 +290,72 @@ export class RLNBaseContract {
         `Rate limit must be between ${RATE_LIMIT_PARAMS.MIN_RATE} and ${RATE_LIMIT_PARAMS.MAX_RATE}`
       );
     }
-    return this.contract.register(idCommitmentBigInt, rateLimit, []);
+    if (!this.rpcClient.account) {
+      throw new Error(
+        "Failed to registerMembership: no account set in wallet client"
+      );
+    }
+    try {
+      await this.contract.simulate.register(
+        [idCommitmentBigInt, rateLimit, []],
+        {
+          chain: this.rpcClient.chain,
+          account: this.rpcClient.account.address
+        }
+      );
+    } catch (err) {
+      throw new Error("Failed to simulate register membership: " + err);
+    }
+
+    const hash = await this.contract.write.register(
+      [idCommitmentBigInt, rateLimit, []],
+      {
+        chain: this.rpcClient.chain,
+        account: this.rpcClient.account
+      }
+    );
+    await this.rpcClient.waitForTransactionReceipt({ hash });
+    return hash;
   }
 
-  public async withdraw(token: string, walletAddress: string): Promise<void> {
+  /**
+   * Withdraw deposited tokens after membership is erased.
+   * The smart contract validates that the sender is the holder of the membership,
+   * and will only send tokens to that address.
+   * @param token - Token address to withdraw
+   */
+  public async withdraw(token: string): Promise<Hash> {
+    if (!this.rpcClient.account) {
+      throw new Error("Failed to withdraw: no account set in wallet client");
+    }
+
     try {
-      const tx = await this.contract.withdraw(token, walletAddress);
-      await tx.wait();
-    } catch (error) {
-      log.error(`Error in withdraw: ${(error as Error).message}`);
+      await this.contract.simulate.withdraw([token as Address], {
+        chain: this.rpcClient.chain,
+        account: this.rpcClient.account.address
+      });
+    } catch (err) {
+      throw new Error("Error simulating withdraw: " + err);
     }
+
+    const hash = await this.contract.write.withdraw([token as Address], {
+      chain: this.rpcClient.chain,
+      account: this.rpcClient.account
+    });
+
+    await this.rpcClient.waitForTransactionReceipt({ hash });
+    return hash;
   }
   public async registerWithIdentity(
     identity: IdentityCredential
   ): Promise<DecryptedCredentials | undefined> {
     try {
+      if (!this.rpcClient.account) {
+        throw new Error(
+          "Failed to registerWithIdentity: no account set in wallet client"
+        );
+      }
+
       log.info(
         `Registering identity with rate limit: ${this.rateLimit} messages/epoch`
       );
@@ -520,62 +378,71 @@ export class RLNBaseContract {
         );
       }
 
-      const estimatedGas = await this.contract.estimateGas.register(
-        identity.IDCommitmentBigInt,
-        this.rateLimit,
-        []
+      await this.contract.simulate.register(
+        [identity.IDCommitmentBigInt, this.rateLimit, []],
+        {
+          chain: this.rpcClient.chain,
+          account: this.rpcClient.account.address
+        }
+      );
+
+      const hash: Hash = await this.contract.write.register(
+        [identity.IDCommitmentBigInt, this.rateLimit, []],
+        {
+          chain: this.rpcClient.chain,
+          account: this.rpcClient.account
+        }
       );
-      const gasLimit = estimatedGas.add(10000);
-
-      const txRegisterResponse: ethers.ContractTransaction =
-        await this.contract.register(
-          identity.IDCommitmentBigInt,
-          this.rateLimit,
-          [],
-          {
-            gasLimit
-          }
-        );
 
-      const txRegisterReceipt = await txRegisterResponse.wait();
+      const txRegisterReceipt = await this.rpcClient.waitForTransactionReceipt({
+        hash
+      });
 
-      if (txRegisterReceipt.status === 0) {
+      if (txRegisterReceipt.status === "reverted") {
         throw new Error("Transaction failed on-chain");
       }
 
-      const memberRegistered = txRegisterReceipt.events?.find(
-        (event: ethers.Event) => event.event === "MembershipRegistered"
-      );
+      // Parse MembershipRegistered event from logs
+      const memberRegisteredLog = txRegisterReceipt.logs.find((log) => {
+        try {
+          const decoded = decodeEventLog({
+            abi: wakuRlnV2Abi,
+            data: log.data,
+            topics: log.topics
+          });
+          return decoded.eventName === "MembershipRegistered";
+        } catch {
+          return false;
+        }
+      });
 
-      if (!memberRegistered || !memberRegistered.args) {
+      if (!memberRegisteredLog) {
         log.error(
           "Failed to register membership: No MembershipRegistered event found"
         );
         return undefined;
       }
 
-      const decodedData: MembershipRegisteredEvent = {
-        idCommitment: memberRegistered.args.idCommitment,
-        membershipRateLimit: memberRegistered.args.membershipRateLimit,
-        index: memberRegistered.args.index
-      };
+      // Decode the event
+      const decoded = decodeEventLog({
+        abi: wakuRlnV2Abi,
+        data: memberRegisteredLog.data,
+        topics: memberRegisteredLog.topics,
+        eventName: "MembershipRegistered"
+      });
 
       log.info(
-        `Successfully registered membership with index ${decodedData.index} ` +
-          `and rate limit ${decodedData.membershipRateLimit}`
+        `Successfully registered membership with index ${decoded.args.index} ` +
+          `and rate limit ${decoded.args.membershipRateLimit}`
       );
 
-      const network = await this.contract.provider.getNetwork();
-      const address = this.contract.address;
-      const membershipId = Number(decodedData.index);
-
       return {
         identity,
         membership: {
-          address,
-          treeIndex: membershipId,
-          chainId: network.chainId.toString(),
-          rateLimit: decodedData.membershipRateLimit.toNumber()
+          address: this.contract.address,
+          treeIndex: decoded.args.index,
+          chainId: String(RLN_CONTRACT.chainId),
+          rateLimit: Number(decoded.args.membershipRateLimit)
         }
       };
     } catch (error) {
@@ -608,78 +475,6 @@ export class RLNBaseContract {
     }
   }
 
-  public async registerWithPermitAndErase(
-    identity: IdentityCredential,
-    permit: {
-      owner: string;
-      deadline: number;
-      v: number;
-      r: string;
-      s: string;
-    },
-    idCommitmentsToErase: string[]
-  ): Promise<DecryptedCredentials | undefined> {
-    try {
-      log.info(
-        `Registering identity with permit and rate limit: ${this.rateLimit} messages/epoch`
-      );
-
-      const txRegisterResponse: ethers.ContractTransaction =
-        await this.contract.registerWithPermit(
-          permit.owner,
-          permit.deadline,
-          permit.v,
-          permit.r,
-          permit.s,
-          identity.IDCommitmentBigInt,
-          this.rateLimit,
-          idCommitmentsToErase.map((id) => ethers.BigNumber.from(id))
-        );
-      const txRegisterReceipt = await txRegisterResponse.wait();
-
-      const memberRegistered = txRegisterReceipt.events?.find(
-        (event: ethers.Event) => event.event === "MembershipRegistered"
-      );
-
-      if (!memberRegistered || !memberRegistered.args) {
-        log.error(
-          "Failed to register membership with permit: No MembershipRegistered event found"
-        );
-        return undefined;
-      }
-
-      const decodedData: MembershipRegisteredEvent = {
-        idCommitment: memberRegistered.args.idCommitment,
-        membershipRateLimit: memberRegistered.args.membershipRateLimit,
-        index: memberRegistered.args.index
-      };
-
-      log.info(
-        `Successfully registered membership with permit. Index: ${decodedData.index}, ` +
-          `Rate limit: ${decodedData.membershipRateLimit}, Erased ${idCommitmentsToErase.length} commitments`
-      );
-
-      const network = await this.contract.provider.getNetwork();
-      const address = this.contract.address;
-      const membershipId = Number(decodedData.index);
-
-      return {
-        identity,
-        membership: {
-          address,
-          treeIndex: membershipId,
-          chainId: network.chainId.toString(),
-          rateLimit: decodedData.membershipRateLimit.toNumber()
-        }
-      };
-    } catch (error) {
-      log.error(
-        `Error in registerWithPermitAndErase: ${(error as Error).message}`
-      );
-      return undefined;
-    }
-  }
-
   /**
    * Validates that the rate limit is within the allowed range (sync)
    * @throws Error if the rate limit is outside the allowed range
@@ -695,50 +490,17 @@ export class RLNBaseContract {
     }
   }
 
-  private get membersFilter(): ethers.EventFilter {
-    if (!this._membersFilter) {
-      throw Error("Members filter was not initialized.");
-    }
-    return this._membersFilter;
-  }
-
-  private get membershipErasedFilter(): ethers.EventFilter {
-    if (!this._membershipErasedFilter) {
-      throw Error("MembershipErased filter was not initialized.");
-    }
-    return this._membershipErasedFilter;
-  }
-
-  private get membersExpiredFilter(): ethers.EventFilter {
-    if (!this._membersExpiredFilter) {
-      throw Error("MembersExpired filter was not initialized.");
-    }
-    return this._membersExpiredFilter;
-  }
-
-  private async getMemberIndex(
-    idCommitmentBigInt: bigint
-  ): Promise<ethers.BigNumber | undefined> {
-    try {
-      const events = await this.contract.queryFilter(
-        this.contract.filters.MembershipRegistered(idCommitmentBigInt)
-      );
-      if (events.length === 0) return undefined;
-
-      // Get the most recent registration event
-      const event = events[events.length - 1];
-      return event.args?.index;
-    } catch (error) {
-      return undefined;
-    }
+  private async getMemberIndex(idCommitmentBigInt: bigint): Promise<number> {
+    // Current version of the contract has the index at position 5 in the membership struct
+    return (await this.contract.read.memberships([idCommitmentBigInt]))[5];
   }
 
   public async getMembershipStatus(
     idCommitment: bigint
   ): Promise<"expired" | "grace" | "active"> {
     const [isExpired, isInGrace] = await Promise.all([
-      this.contract.isExpired(idCommitment),
-      this.contract.isInGracePeriod(idCommitment)
+      this.contract.read.isExpired([idCommitment]),
+      this.contract.read.isInGracePeriod([idCommitment])
     ]);
 
     if (isExpired) return "expired";
@@ -753,7 +515,7 @@ export class RLNBaseContract {
    */
   public async isExpired(idCommitmentBigInt: bigint): Promise<boolean> {
     try {
-      return await this.contract.isExpired(idCommitmentBigInt);
+      return await this.contract.read.isExpired([idCommitmentBigInt]);
     } catch (error) {
       log.error("Error in isExpired:", error);
       return false;
@@ -767,7 +529,7 @@ export class RLNBaseContract {
    */
   public async isInGracePeriod(idCommitmentBigInt: bigint): Promise<boolean> {
     try {
-      return await this.contract.isInGracePeriod(idCommitmentBigInt);
+      return await this.contract.read.isInGracePeriod([idCommitmentBigInt]);
     } catch (error) {
       log.error("Error in isInGracePeriod:", error);
       return false;
@@ -779,21 +541,18 @@ export class RLNBaseContract {
    * @param rateLimit The rate limit to calculate the price for
    * @param contractFactory Optional factory for creating the contract (for testing)
    */
-  public async getPriceForRateLimit(
-    rateLimit: number,
-    contractFactory?: typeof import("ethers").Contract
-  ): Promise<{
+  public async getPriceForRateLimit(rateLimit: number): Promise<{
     token: string | null;
-    price: import("ethers").BigNumber | null;
+    price: bigint | null;
   }> {
-    const provider = this.contract.provider;
-    const ContractCtor = contractFactory || ethers.Contract;
-    const priceCalculator = new ContractCtor(
-      PRICE_CALCULATOR_CONTRACT.address,
-      PRICE_CALCULATOR_CONTRACT.abi,
-      provider
-    );
-    const [token, price] = await priceCalculator.calculate(rateLimit);
+    const address = await this.contract.read.priceCalculator();
+    const [token, price] = await this.rpcClient.readContract({
+      address,
+      abi: iPriceCalculatorAbi,
+      functionName: "calculate",
+      args: [rateLimit]
+    });
+
     // Defensive: if token or price is null/undefined, return nulls
     if (!token || !price) {
       return { token: null, price: null };
diff --git a/packages/rln/src/contract/types.ts b/packages/rln/src/contract/types.ts
index bd0247bb6a..479ed412bb 100644
--- a/packages/rln/src/contract/types.ts
+++ b/packages/rln/src/contract/types.ts
@@ -1,28 +1,22 @@
-import { ethers } from "ethers";
+import { Address } from "viem";
 
-export interface CustomQueryOptions extends FetchMembersOptions {
-  membersFilter: ethers.EventFilter;
-}
+import { RpcClient } from "../utils/index.js";
 
 export type Member = {
   idCommitment: string;
-  index: ethers.BigNumber;
+  index: bigint;
 };
 
 export interface RLNContractOptions {
-  signer: ethers.Signer;
-  address: string;
+  rpcClient: RpcClient;
+  address: Address;
   rateLimit?: number;
 }
 
-export interface RLNContractInitOptions extends RLNContractOptions {
-  contract?: ethers.Contract;
-}
-
 export interface MembershipRegisteredEvent {
   idCommitment: string;
-  membershipRateLimit: ethers.BigNumber;
-  index: ethers.BigNumber;
+  membershipRateLimit: bigint;
+  index: bigint;
 }
 
 export type FetchMembersOptions = {
@@ -32,13 +26,13 @@ export type FetchMembersOptions = {
 };
 
 export interface MembershipInfo {
-  index: ethers.BigNumber;
+  index: number;
   idCommitment: string;
   rateLimit: number;
   startBlock: number;
   endBlock: number;
   state: MembershipState;
-  depositAmount: ethers.BigNumber;
+  depositAmount: bigint;
   activeDuration: number;
   gracePeriodDuration: number;
   holder: string;
diff --git a/packages/rln/src/contract/wagmi/generated.ts b/packages/rln/src/contract/wagmi/generated.ts
new file mode 100644
index 0000000000..f13fa0c2ce
--- /dev/null
+++ b/packages/rln/src/contract/wagmi/generated.ts
@@ -0,0 +1,977 @@
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// IPriceCalculator
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+export const iPriceCalculatorAbi = [
+  {
+    type: "function",
+    inputs: [{ name: "_rateLimit", internalType: "uint32", type: "uint32" }],
+    name: "calculate",
+    outputs: [
+      { name: "", internalType: "address", type: "address" },
+      { name: "", internalType: "uint256", type: "uint256" }
+    ],
+    stateMutability: "view"
+  }
+] as const;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// LinearPriceCalculator
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+export const linearPriceCalculatorAbi = [
+  {
+    type: "constructor",
+    inputs: [
+      { name: "_token", internalType: "address", type: "address" },
+      {
+        name: "_pricePerMessagePerEpoch",
+        internalType: "uint256",
+        type: "uint256"
+      }
+    ],
+    stateMutability: "nonpayable"
+  },
+  {
+    type: "function",
+    inputs: [{ name: "_rateLimit", internalType: "uint32", type: "uint32" }],
+    name: "calculate",
+    outputs: [
+      { name: "", internalType: "address", type: "address" },
+      { name: "", internalType: "uint256", type: "uint256" }
+    ],
+    stateMutability: "view"
+  },
+  {
+    type: "function",
+    inputs: [],
+    name: "owner",
+    outputs: [{ name: "", internalType: "address", type: "address" }],
+    stateMutability: "view"
+  },
+  {
+    type: "function",
+    inputs: [],
+    name: "pricePerMessagePerEpoch",
+    outputs: [{ name: "", internalType: "uint256", type: "uint256" }],
+    stateMutability: "view"
+  },
+  {
+    type: "function",
+    inputs: [],
+    name: "renounceOwnership",
+    outputs: [],
+    stateMutability: "nonpayable"
+  },
+  {
+    type: "function",
+    inputs: [
+      { name: "_token", internalType: "address", type: "address" },
+      {
+        name: "_pricePerMessagePerEpoch",
+        internalType: "uint256",
+        type: "uint256"
+      }
+    ],
+    name: "setTokenAndPrice",
+    outputs: [],
+    stateMutability: "nonpayable"
+  },
+  {
+    type: "function",
+    inputs: [],
+    name: "token",
+    outputs: [{ name: "", internalType: "address", type: "address" }],
+    stateMutability: "view"
+  },
+  {
+    type: "function",
+    inputs: [{ name: "newOwner", internalType: "address", type: "address" }],
+    name: "transferOwnership",
+    outputs: [],
+    stateMutability: "nonpayable"
+  },
+  {
+    type: "event",
+    anonymous: false,
+    inputs: [
+      {
+        name: "previousOwner",
+        internalType: "address",
+        type: "address",
+        indexed: true
+      },
+      {
+        name: "newOwner",
+        internalType: "address",
+        type: "address",
+        indexed: true
+      }
+    ],
+    name: "OwnershipTransferred"
+  },
+  { type: "error", inputs: [], name: "OnlyTokensAllowed" }
+] as const;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// MembershipUpgradeable
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+export const membershipUpgradeableAbi = [
+  {
+    type: "function",
+    inputs: [],
+    name: "activeDurationForNewMemberships",
+    outputs: [{ name: "", internalType: "uint32", type: "uint32" }],
+    stateMutability: "view"
+  },
+  {
+    type: "function",
+    inputs: [],
+    name: "currentTotalRateLimit",
+    outputs: [{ name: "", internalType: "uint256", type: "uint256" }],
+    stateMutability: "view"
+  },
+  {
+    type: "function",
+    inputs: [
+      { name: "holder", internalType: "address", type: "address" },
+      { name: "token", internalType: "address", type: "address" }
+    ],
+    name: "depositsToWithdraw",
+    outputs: [{ name: "balance", internalType: "uint256", type: "uint256" }],
+    stateMutability: "view"
+  },
+  {
+    type: "function",
+    inputs: [],
+    name: "gracePeriodDurationForNewMemberships",
+    outputs: [{ name: "", internalType: "uint32", type: "uint32" }],
+    stateMutability: "view"
+  },
+  {
+    type: "function",
+    inputs: [{ name: "", internalType: "uint256", type: "uint256" }],
+    name: "indicesOfLazilyErasedMemberships",
+    outputs: [{ name: "", internalType: "uint32", type: "uint32" }],
+    stateMutability: "view"
+  },
+  {
+    type: "function",
+    inputs: [
+      { name: "_idCommitment", internalType: "uint256", type: "uint256" }
+    ],
+    name: "isExpired",
+    outputs: [{ name: "", internalType: "bool", type: "bool" }],
+    stateMutability: "view"
+  },
+  {
+    type: "function",
+    inputs: [
+      { name: "_idCommitment", internalType: "uint256", type: "uint256" }
+    ],
+    name: "isInGracePeriod",
+    outputs: [{ name: "", internalType: "bool", type: "bool" }],
+    stateMutability: "view"
+  },
+  {
+    type: "function",
+    inputs: [{ name: "rateLimit", internalType: "uint32", type: "uint32" }],
+    name: "isValidMembershipRateLimit",
+    outputs: [{ name: "", internalType: "bool", type: "bool" }],
+    stateMutability: "view"
+  },
+  {
+    type: "function",
+    inputs: [],
+    name: "maxMembershipRateLimit",
+    outputs: [{ name: "", internalType: "uint32", type: "uint32" }],
+    stateMutability: "view"
+  },
+  {
+    type: "function",
+    inputs: [],
+    name: "maxTotalRateLimit",
+    outputs: [{ name: "", internalType: "uint32", type: "uint32" }],
+    stateMutability: "view"
+  },
+  {
+    type: "function",
+    inputs: [
+      { name: "_idCommitment", internalType: "uint256", type: "uint256" }
+    ],
+    name: "membershipExpirationTimestamp",
+    outputs: [{ name: "", internalType: "uint256", type: "uint256" }],
+    stateMutability: "view"
+  },
+  {
+    type: "function",
+    inputs: [
+      { name: "idCommitment", internalType: "uint256", type: "uint256" }
+    ],
+    name: "memberships",
+    outputs: [
+      { name: "depositAmount", internalType: "uint256", type: "uint256" },
+      { name: "activeDuration", internalType: "uint32", type: "uint32" },
+      {
+        name: "gracePeriodStartTimestamp",
+        internalType: "uint256",
+        type: "uint256"
+      },
+      { name: "gracePeriodDuration", internalType: "uint32", type: "uint32" },
+      { name: "rateLimit", internalType: "uint32", type: "uint32" },
+      { name: "index", internalType: "uint32", type: "uint32" },
+      { name: "holder", internalType: "address", type: "address" },
+      { name: "token", internalType: "address", type: "address" }
+    ],
+    stateMutability: "view"
+  },
+  {
+    type: "function",
+    inputs: [],
+    name: "minMembershipRateLimit",
+    outputs: [{ name: "", internalType: "uint32", type: "uint32" }],
+    stateMutability: "view"
+  },
+  {
+    type: "function",
+    inputs: [],
+    name: "nextFreeIndex",
+    outputs: [{ name: "", internalType: "uint32", type: "uint32" }],
+    stateMutability: "view"
+  },
+  {
+    type: "function",
+    inputs: [],
+    name: "priceCalculator",
+    outputs: [
+      { name: "", internalType: "contract IPriceCalculator", type: "address" }
+    ],
+    stateMutability: "view"
+  },
+  {
+    type: "event",
+    anonymous: false,
+    inputs: [
+      { name: "version", internalType: "uint8", type: "uint8", indexed: false }
+    ],
+    name: "Initialized"
+  },
+  {
+    type: "event",
+    anonymous: false,
+    inputs: [
+      {
+        name: "idCommitment",
+        internalType: "uint256",
+        type: "uint256",
+        indexed: false
+      },
+      {
+        name: "membershipRateLimit",
+        internalType: "uint32",
+        type: "uint32",
+        indexed: false
+      },
+      { name: "index", internalType: "uint32", type: "uint32", indexed: false }
+    ],
+    name: "MembershipErased"
+  },
+  {
+    type: "event",
+    anonymous: false,
+    inputs: [
+      {
+        name: "idCommitment",
+        internalType: "uint256",
+        type: "uint256",
+        indexed: false
+      },
+      {
+        name: "membershipRateLimit",
+        internalType: "uint32",
+        type: "uint32",
+        indexed: false
+      },
+      { name: "index", internalType: "uint32", type: "uint32", indexed: false }
+    ],
+    name: "MembershipExpired"
+  },
+  {
+    type: "event",
+    anonymous: false,
+    inputs: [
+      {
+        name: "idCommitment",
+        internalType: "uint256",
+        type: "uint256",
+        indexed: false
+      },
+      {
+        name: "membershipRateLimit",
+        internalType: "uint32",
+        type: "uint32",
+        indexed: false
+      },
+      { name: "index", internalType: "uint32", type: "uint32", indexed: false },
+      {
+        name: "newGracePeriodStartTimestamp",
+        internalType: "uint256",
+        type: "uint256",
+        indexed: false
+      }
+    ],
+    name: "MembershipExtended"
+  },
+  {
+    type: "event",
+    anonymous: false,
+    inputs: [
+      {
+        name: "idCommitment",
+        internalType: "uint256",
+        type: "uint256",
+        indexed: false
+      },
+      {
+        name: "membershipRateLimit",
+        internalType: "uint256",
+        type: "uint256",
+        indexed: false
+      },
+      { name: "index", internalType: "uint32", type: "uint32", indexed: false }
+    ],
+    name: "MembershipRegistered"
+  }
+] as const;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// WakuRlnV2
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+export const wakuRlnV2Abi = [
+  { type: "constructor", inputs: [], stateMutability: "nonpayable" },
+  {
+    type: "function",
+    inputs: [],
+    name: "MAX_MEMBERSHIP_SET_SIZE",
+    outputs: [{ name: "", internalType: "uint32", type: "uint32" }],
+    stateMutability: "view"
+  },
+  {
+    type: "function",
+    inputs: [],
+    name: "MERKLE_TREE_DEPTH",
+    outputs: [{ name: "", internalType: "uint8", type: "uint8" }],
+    stateMutability: "view"
+  },
+  {
+    type: "function",
+    inputs: [],
+    name: "Q",
+    outputs: [{ name: "", internalType: "uint256", type: "uint256" }],
+    stateMutability: "view"
+  },
+  {
+    type: "function",
+    inputs: [],
+    name: "activeDurationForNewMemberships",
+    outputs: [{ name: "", internalType: "uint32", type: "uint32" }],
+    stateMutability: "view"
+  },
+  {
+    type: "function",
+    inputs: [],
+    name: "currentTotalRateLimit",
+    outputs: [{ name: "", internalType: "uint256", type: "uint256" }],
+    stateMutability: "view"
+  },
+  {
+    type: "function",
+    inputs: [],
+    name: "deployedBlockNumber",
+    outputs: [{ name: "", internalType: "uint32", type: "uint32" }],
+    stateMutability: "view"
+  },
+  {
+    type: "function",
+    inputs: [
+      { name: "holder", internalType: "address", type: "address" },
+      { name: "token", internalType: "address", type: "address" }
+    ],
+    name: "depositsToWithdraw",
+    outputs: [{ name: "balance", internalType: "uint256", type: "uint256" }],
+    stateMutability: "view"
+  },
+  {
+    type: "function",
+    inputs: [
+      { name: "idCommitments", internalType: "uint256[]", type: "uint256[]" }
+    ],
+    name: "eraseMemberships",
+    outputs: [],
+    stateMutability: "nonpayable"
+  },
+  {
+    type: "function",
+    inputs: [
+      { name: "idCommitments", internalType: "uint256[]", type: "uint256[]" },
+      { name: "eraseFromMembershipSet", internalType: "bool", type: "bool" }
+    ],
+    name: "eraseMemberships",
+    outputs: [],
+    stateMutability: "nonpayable"
+  },
+  {
+    type: "function",
+    inputs: [
+      { name: "idCommitments", internalType: "uint256[]", type: "uint256[]" }
+    ],
+    name: "extendMemberships",
+    outputs: [],
+    stateMutability: "nonpayable"
+  },
+  {
+    type: "function",
+    inputs: [
+      { name: "idCommitment", internalType: "uint256", type: "uint256" }
+    ],
+    name: "getMembershipInfo",
+    outputs: [
+      { name: "", internalType: "uint32", type: "uint32" },
+      { name: "", internalType: "uint32", type: "uint32" },
+      { name: "", internalType: "uint256", type: "uint256" }
+    ],
+    stateMutability: "view"
+  },
+  {
+    type: "function",
+    inputs: [{ name: "index", internalType: "uint40", type: "uint40" }],
+    name: "getMerkleProof",
+    outputs: [{ name: "", internalType: "uint256[20]", type: "uint256[20]" }],
+    stateMutability: "view"
+  },
+  {
+    type: "function",
+    inputs: [
+      { name: "startIndex", internalType: "uint32", type: "uint32" },
+      { name: "endIndex", internalType: "uint32", type: "uint32" }
+    ],
+    name: "getRateCommitmentsInRangeBoundsInclusive",
+    outputs: [{ name: "", internalType: "uint256[]", type: "uint256[]" }],
+    stateMutability: "view"
+  },
+  {
+    type: "function",
+    inputs: [],
+    name: "gracePeriodDurationForNewMemberships",
+    outputs: [{ name: "", internalType: "uint32", type: "uint32" }],
+    stateMutability: "view"
+  },
+  {
+    type: "function",
+    inputs: [{ name: "", internalType: "uint256", type: "uint256" }],
+    name: "indicesOfLazilyErasedMemberships",
+    outputs: [{ name: "", internalType: "uint32", type: "uint32" }],
+    stateMutability: "view"
+  },
+  {
+    type: "function",
+    inputs: [
+      { name: "_priceCalculator", internalType: "address", type: "address" },
+      { name: "_maxTotalRateLimit", internalType: "uint32", type: "uint32" },
+      {
+        name: "_minMembershipRateLimit",
+        internalType: "uint32",
+        type: "uint32"
+      },
+      {
+        name: "_maxMembershipRateLimit",
+        internalType: "uint32",
+        type: "uint32"
+      },
+      { name: "_activeDuration", internalType: "uint32", type: "uint32" },
+      { name: "_gracePeriod", internalType: "uint32", type: "uint32" }
+    ],
+    name: "initialize",
+    outputs: [],
+    stateMutability: "nonpayable"
+  },
+  {
+    type: "function",
+    inputs: [
+      { name: "_idCommitment", internalType: "uint256", type: "uint256" }
+    ],
+    name: "isExpired",
+    outputs: [{ name: "", internalType: "bool", type: "bool" }],
+    stateMutability: "view"
+  },
+  {
+    type: "function",
+    inputs: [
+      { name: "_idCommitment", internalType: "uint256", type: "uint256" }
+    ],
+    name: "isInGracePeriod",
+    outputs: [{ name: "", internalType: "bool", type: "bool" }],
+    stateMutability: "view"
+  },
+  {
+    type: "function",
+    inputs: [
+      { name: "idCommitment", internalType: "uint256", type: "uint256" }
+    ],
+    name: "isInMembershipSet",
+    outputs: [{ name: "", internalType: "bool", type: "bool" }],
+    stateMutability: "view"
+  },
+  {
+    type: "function",
+    inputs: [
+      { name: "idCommitment", internalType: "uint256", type: "uint256" }
+    ],
+    name: "isValidIdCommitment",
+    outputs: [{ name: "", internalType: "bool", type: "bool" }],
+    stateMutability: "pure"
+  },
+  {
+    type: "function",
+    inputs: [{ name: "rateLimit", internalType: "uint32", type: "uint32" }],
+    name: "isValidMembershipRateLimit",
+    outputs: [{ name: "", internalType: "bool", type: "bool" }],
+    stateMutability: "view"
+  },
+  {
+    type: "function",
+    inputs: [],
+    name: "maxMembershipRateLimit",
+    outputs: [{ name: "", internalType: "uint32", type: "uint32" }],
+    stateMutability: "view"
+  },
+  {
+    type: "function",
+    inputs: [],
+    name: "maxTotalRateLimit",
+    outputs: [{ name: "", internalType: "uint32", type: "uint32" }],
+    stateMutability: "view"
+  },
+  {
+    type: "function",
+    inputs: [
+      { name: "_idCommitment", internalType: "uint256", type: "uint256" }
+    ],
+    name: "membershipExpirationTimestamp",
+    outputs: [{ name: "", internalType: "uint256", type: "uint256" }],
+    stateMutability: "view"
+  },
+  {
+    type: "function",
+    inputs: [
+      { name: "idCommitment", internalType: "uint256", type: "uint256" }
+    ],
+    name: "memberships",
+    outputs: [
+      { name: "depositAmount", internalType: "uint256", type: "uint256" },
+      { name: "activeDuration", internalType: "uint32", type: "uint32" },
+      {
+        name: "gracePeriodStartTimestamp",
+        internalType: "uint256",
+        type: "uint256"
+      },
+      { name: "gracePeriodDuration", internalType: "uint32", type: "uint32" },
+      { name: "rateLimit", internalType: "uint32", type: "uint32" },
+      { name: "index", internalType: "uint32", type: "uint32" },
+      { name: "holder", internalType: "address", type: "address" },
+      { name: "token", internalType: "address", type: "address" }
+    ],
+    stateMutability: "view"
+  },
+  {
+    type: "function",
+    inputs: [],
+    name: "merkleTree",
+    outputs: [
+      { name: "maxIndex", internalType: "uint40", type: "uint40" },
+      { name: "numberOfLeaves", internalType: "uint40", type: "uint40" }
+    ],
+    stateMutability: "view"
+  },
+  {
+    type: "function",
+    inputs: [],
+    name: "minMembershipRateLimit",
+    outputs: [{ name: "", internalType: "uint32", type: "uint32" }],
+    stateMutability: "view"
+  },
+  {
+    type: "function",
+    inputs: [],
+    name: "nextFreeIndex",
+    outputs: [{ name: "", internalType: "uint32", type: "uint32" }],
+    stateMutability: "view"
+  },
+  {
+    type: "function",
+    inputs: [],
+    name: "owner",
+    outputs: [{ name: "", internalType: "address", type: "address" }],
+    stateMutability: "view"
+  },
+  {
+    type: "function",
+    inputs: [],
+    name: "priceCalculator",
+    outputs: [
+      { name: "", internalType: "contract IPriceCalculator", type: "address" }
+    ],
+    stateMutability: "view"
+  },
+  {
+    type: "function",
+    inputs: [],
+    name: "proxiableUUID",
+    outputs: [{ name: "", internalType: "bytes32", type: "bytes32" }],
+    stateMutability: "view"
+  },
+  {
+    type: "function",
+    inputs: [
+      { name: "idCommitment", internalType: "uint256", type: "uint256" },
+      { name: "rateLimit", internalType: "uint32", type: "uint32" },
+      {
+        name: "idCommitmentsToErase",
+        internalType: "uint256[]",
+        type: "uint256[]"
+      }
+    ],
+    name: "register",
+    outputs: [],
+    stateMutability: "nonpayable"
+  },
+  {
+    type: "function",
+    inputs: [],
+    name: "renounceOwnership",
+    outputs: [],
+    stateMutability: "nonpayable"
+  },
+  {
+    type: "function",
+    inputs: [],
+    name: "root",
+    outputs: [{ name: "", internalType: "uint256", type: "uint256" }],
+    stateMutability: "view"
+  },
+  {
+    type: "function",
+    inputs: [
+      {
+        name: "_activeDurationForNewMembership",
+        internalType: "uint32",
+        type: "uint32"
+      }
+    ],
+    name: "setActiveDuration",
+    outputs: [],
+    stateMutability: "nonpayable"
+  },
+  {
+    type: "function",
+    inputs: [
+      {
+        name: "_gracePeriodDurationForNewMembership",
+        internalType: "uint32",
+        type: "uint32"
+      }
+    ],
+    name: "setGracePeriodDuration",
+    outputs: [],
+    stateMutability: "nonpayable"
+  },
+  {
+    type: "function",
+    inputs: [
+      {
+        name: "_maxMembershipRateLimit",
+        internalType: "uint32",
+        type: "uint32"
+      }
+    ],
+    name: "setMaxMembershipRateLimit",
+    outputs: [],
+    stateMutability: "nonpayable"
+  },
+  {
+    type: "function",
+    inputs: [
+      { name: "_maxTotalRateLimit", internalType: "uint32", type: "uint32" }
+    ],
+    name: "setMaxTotalRateLimit",
+    outputs: [],
+    stateMutability: "nonpayable"
+  },
+  {
+    type: "function",
+    inputs: [
+      {
+        name: "_minMembershipRateLimit",
+        internalType: "uint32",
+        type: "uint32"
+      }
+    ],
+    name: "setMinMembershipRateLimit",
+    outputs: [],
+    stateMutability: "nonpayable"
+  },
+  {
+    type: "function",
+    inputs: [
+      { name: "_priceCalculator", internalType: "address", type: "address" }
+    ],
+    name: "setPriceCalculator",
+    outputs: [],
+    stateMutability: "nonpayable"
+  },
+  {
+    type: "function",
+    inputs: [{ name: "newOwner", internalType: "address", type: "address" }],
+    name: "transferOwnership",
+    outputs: [],
+    stateMutability: "nonpayable"
+  },
+  {
+    type: "function",
+    inputs: [
+      { name: "newImplementation", internalType: "address", type: "address" }
+    ],
+    name: "upgradeTo",
+    outputs: [],
+    stateMutability: "nonpayable"
+  },
+  {
+    type: "function",
+    inputs: [
+      { name: "newImplementation", internalType: "address", type: "address" },
+      { name: "data", internalType: "bytes", type: "bytes" }
+    ],
+    name: "upgradeToAndCall",
+    outputs: [],
+    stateMutability: "payable"
+  },
+  {
+    type: "function",
+    inputs: [{ name: "token", internalType: "address", type: "address" }],
+    name: "withdraw",
+    outputs: [],
+    stateMutability: "nonpayable"
+  },
+  {
+    type: "event",
+    anonymous: false,
+    inputs: [
+      {
+        name: "previousAdmin",
+        internalType: "address",
+        type: "address",
+        indexed: false
+      },
+      {
+        name: "newAdmin",
+        internalType: "address",
+        type: "address",
+        indexed: false
+      }
+    ],
+    name: "AdminChanged"
+  },
+  {
+    type: "event",
+    anonymous: false,
+    inputs: [
+      {
+        name: "beacon",
+        internalType: "address",
+        type: "address",
+        indexed: true
+      }
+    ],
+    name: "BeaconUpgraded"
+  },
+  {
+    type: "event",
+    anonymous: false,
+    inputs: [
+      { name: "version", internalType: "uint8", type: "uint8", indexed: false }
+    ],
+    name: "Initialized"
+  },
+  {
+    type: "event",
+    anonymous: false,
+    inputs: [
+      {
+        name: "idCommitment",
+        internalType: "uint256",
+        type: "uint256",
+        indexed: false
+      },
+      {
+        name: "membershipRateLimit",
+        internalType: "uint32",
+        type: "uint32",
+        indexed: false
+      },
+      { name: "index", internalType: "uint32", type: "uint32", indexed: false }
+    ],
+    name: "MembershipErased"
+  },
+  {
+    type: "event",
+    anonymous: false,
+    inputs: [
+      {
+        name: "idCommitment",
+        internalType: "uint256",
+        type: "uint256",
+        indexed: false
+      },
+      {
+        name: "membershipRateLimit",
+        internalType: "uint32",
+        type: "uint32",
+        indexed: false
+      },
+      { name: "index", internalType: "uint32", type: "uint32", indexed: false }
+    ],
+    name: "MembershipExpired"
+  },
+  {
+    type: "event",
+    anonymous: false,
+    inputs: [
+      {
+        name: "idCommitment",
+        internalType: "uint256",
+        type: "uint256",
+        indexed: false
+      },
+      {
+        name: "membershipRateLimit",
+        internalType: "uint32",
+        type: "uint32",
+        indexed: false
+      },
+      { name: "index", internalType: "uint32", type: "uint32", indexed: false },
+      {
+        name: "newGracePeriodStartTimestamp",
+        internalType: "uint256",
+        type: "uint256",
+        indexed: false
+      }
+    ],
+    name: "MembershipExtended"
+  },
+  {
+    type: "event",
+    anonymous: false,
+    inputs: [
+      {
+        name: "idCommitment",
+        internalType: "uint256",
+        type: "uint256",
+        indexed: false
+      },
+      {
+        name: "membershipRateLimit",
+        internalType: "uint256",
+        type: "uint256",
+        indexed: false
+      },
+      { name: "index", internalType: "uint32", type: "uint32", indexed: false }
+    ],
+    name: "MembershipRegistered"
+  },
+  {
+    type: "event",
+    anonymous: false,
+    inputs: [
+      {
+        name: "previousOwner",
+        internalType: "address",
+        type: "address",
+        indexed: true
+      },
+      {
+        name: "newOwner",
+        internalType: "address",
+        type: "address",
+        indexed: true
+      }
+    ],
+    name: "OwnershipTransferred"
+  },
+  {
+    type: "event",
+    anonymous: false,
+    inputs: [
+      {
+        name: "implementation",
+        internalType: "address",
+        type: "address",
+        indexed: true
+      }
+    ],
+    name: "Upgraded"
+  },
+  {
+    type: "error",
+    inputs: [
+      { name: "idCommitment", internalType: "uint256", type: "uint256" }
+    ],
+    name: "CannotEraseActiveMembership"
+  },
+  { type: "error", inputs: [], name: "CannotExceedMaxTotalRateLimit" },
+  {
+    type: "error",
+    inputs: [
+      { name: "idCommitment", internalType: "uint256", type: "uint256" }
+    ],
+    name: "CannotExtendNonGracePeriodMembership"
+  },
+  {
+    type: "error",
+    inputs: [
+      { name: "idCommitment", internalType: "uint256", type: "uint256" }
+    ],
+    name: "InvalidIdCommitment"
+  },
+  { type: "error", inputs: [], name: "InvalidMembershipRateLimit" },
+  {
+    type: "error",
+    inputs: [
+      { name: "startIndex", internalType: "uint256", type: "uint256" },
+      { name: "endIndex", internalType: "uint256", type: "uint256" }
+    ],
+    name: "InvalidPaginationQuery"
+  },
+  {
+    type: "error",
+    inputs: [
+      { name: "idCommitment", internalType: "uint256", type: "uint256" }
+    ],
+    name: "MembershipDoesNotExist"
+  },
+  {
+    type: "error",
+    inputs: [
+      { name: "idCommitment", internalType: "uint256", type: "uint256" }
+    ],
+    name: "NonHolderCannotEraseGracePeriodMembership"
+  },
+  {
+    type: "error",
+    inputs: [
+      { name: "idCommitment", internalType: "uint256", type: "uint256" }
+    ],
+    name: "NonHolderCannotExtend"
+  }
+] as const;
diff --git a/packages/rln/src/credentials_manager.ts b/packages/rln/src/credentials_manager.ts
index b82d9421f1..25a61898f2 100644
--- a/packages/rln/src/credentials_manager.ts
+++ b/packages/rln/src/credentials_manager.ts
@@ -1,5 +1,5 @@
 import { Logger } from "@waku/utils";
-import { ethers } from "ethers";
+import { publicActions } from "viem";
 
 import { RLN_CONTRACT } from "./contract/constants.js";
 import { RLNBaseContract } from "./contract/rln_base_contract.js";
@@ -10,7 +10,7 @@ import type {
 } from "./keystore/index.js";
 import { KeystoreEntity, Password } from "./keystore/types.js";
 import { RegisterMembershipOptions, StartRLNOptions } from "./types.js";
-import { extractMetaMaskSigner } from "./utils/index.js";
+import { createViemClientFromWindow, RpcClient } from "./utils/index.js";
 import { Zerokit } from "./zerokit.js";
 
 const log = new Logger("rln:credentials");
@@ -24,7 +24,7 @@ export class RLNCredentialsManager {
   protected starting = false;
 
   public contract: undefined | RLNBaseContract;
-  public signer: undefined | ethers.Signer;
+  public rpcClient: undefined | RpcClient;
 
   protected keystore = Keystore.create();
   public credentials: undefined | DecryptedCredentials;
@@ -36,10 +36,6 @@ export class RLNCredentialsManager {
     this.zerokit = zerokit;
   }
 
-  public get provider(): undefined | ethers.providers.Provider {
-    return this.contract?.provider;
-  }
-
   public async start(options: StartRLNOptions = {}): Promise<void> {
     if (this.started || this.starting) {
       log.info("RLNCredentialsManager already started or starting");
@@ -59,10 +55,8 @@ export class RLNCredentialsManager {
         log.info("Credentials successfully decrypted");
       }
 
-      const { signer, address, rateLimit } = await this.determineStartOptions(
-        options,
-        credentials
-      );
+      const { rpcClient, address, rateLimit } =
+        await this.determineStartOptions(options, credentials);
 
       log.info(`Using contract address: ${address}`);
 
@@ -72,10 +66,10 @@ export class RLNCredentialsManager {
       }
 
       this.credentials = credentials;
-      this.signer = signer!;
+      this.rpcClient = rpcClient!;
       this.contract = await RLNBaseContract.create({
-        address: address!,
-        signer: signer!,
+        address: address! as `0x${string}`,
+        rpcClient: this.rpcClient,
         rateLimit: rateLimit ?? this.zerokit.rateLimit
       });
 
@@ -134,7 +128,7 @@ export class RLNCredentialsManager {
   protected async determineStartOptions(
     options: StartRLNOptions,
     credentials: KeystoreEntity | undefined
-  ): Promise<StartRLNOptions> {
+  ): Promise<StartRLNOptions & { rpcClient: RpcClient }> {
     let chainId = credentials?.membership.chainId;
     const address =
       credentials?.membership.address ||
@@ -146,11 +140,14 @@ export class RLNCredentialsManager {
       log.info(`Using Linea contract with chainId: ${chainId}`);
     }
 
-    const signer = options.signer || (await extractMetaMaskSigner());
-    const currentChainId = await signer.getChainId();
+    const rpcClient: RpcClient = options.walletClient
+      ? options.walletClient.extend(publicActions)
+      : await createViemClientFromWindow();
+
+    const currentChainId = rpcClient.chain?.id;
     log.info(`Current chain ID: ${currentChainId}`);
 
-    if (chainId && chainId !== currentChainId.toString()) {
+    if (chainId && chainId !== currentChainId?.toString()) {
       log.error(
         `Chain ID mismatch: contract=${chainId}, current=${currentChainId}`
       );
@@ -160,7 +157,7 @@ export class RLNCredentialsManager {
     }
 
     return {
-      signer,
+      rpcClient,
       address
     };
   }
@@ -206,9 +203,9 @@ export class RLNCredentialsManager {
   protected async verifyCredentialsAgainstContract(
     credentials: KeystoreEntity
   ): Promise<void> {
-    if (!this.contract) {
+    if (!this.contract || !this.rpcClient) {
       throw Error(
-        "Failed to verify chain coordinates: no contract initialized."
+        "Failed to verify chain coordinates: no contract or viem client initialized."
       );
     }
 
@@ -221,8 +218,7 @@ export class RLNCredentialsManager {
     }
 
     const chainId = credentials.membership.chainId;
-    const network = await this.contract.provider.getNetwork();
-    const currentChainId = network.chainId;
+    const currentChainId = await this.rpcClient.getChainId();
     if (chainId !== currentChainId.toString()) {
       throw Error(
         `Failed to verify chain coordinates: credentials chainID=${chainId} is not equal to registryContract chainID=${currentChainId}`
diff --git a/packages/rln/src/index.ts b/packages/rln/src/index.ts
index 3348e370f7..b2bd28e3e3 100644
--- a/packages/rln/src/index.ts
+++ b/packages/rln/src/index.ts
@@ -1,11 +1,10 @@
-import { RLN_ABI } from "./contract/abi/rln.js";
 import { RLN_CONTRACT } from "./contract/index.js";
 import { RLNBaseContract } from "./contract/rln_base_contract.js";
 import { createRLN } from "./create.js";
 import { IdentityCredential } from "./identity.js";
 import { Keystore } from "./keystore/index.js";
 import { RLNInstance } from "./rln.js";
-import { extractMetaMaskSigner } from "./utils/index.js";
+import { createViemClientFromWindow } from "./utils/index.js";
 
 export {
   RLNBaseContract,
@@ -14,10 +13,16 @@ export {
   RLNInstance,
   IdentityCredential,
   RLN_CONTRACT,
-  extractMetaMaskSigner,
-  RLN_ABI
+  createViemClientFromWindow
 };
 
+export {
+  wakuRlnV2Abi,
+  linearPriceCalculatorAbi,
+  iPriceCalculatorAbi,
+  membershipUpgradeableAbi
+} from "./contract/wagmi/generated.js";
+
 export type {
   DecryptedCredentials,
   EncryptedCredentials,
diff --git a/packages/rln/src/types.ts b/packages/rln/src/types.ts
index 7980c8aea9..55497de0a4 100644
--- a/packages/rln/src/types.ts
+++ b/packages/rln/src/types.ts
@@ -1,4 +1,4 @@
-import { ethers } from "ethers";
+import { WalletClient } from "viem";
 
 import { IdentityCredential } from "./identity.js";
 import {
@@ -8,9 +8,9 @@ import {
 
 export type StartRLNOptions = {
   /**
-   * If not set - will extract MetaMask account and get signer from it.
+   * If not set - will attempt to create from provider injected in window.
    */
-  signer?: ethers.Signer;
+  walletClient?: WalletClient;
   /**
    * If not set - will use default SEPOLIA_CONTRACT address.
    */
diff --git a/packages/rln/src/utils/index.ts b/packages/rln/src/utils/index.ts
index dddc0b8285..a5cf32937e 100644
--- a/packages/rln/src/utils/index.ts
+++ b/packages/rln/src/utils/index.ts
@@ -1,4 +1,4 @@
-export { extractMetaMaskSigner } from "./metamask.js";
+export { createViemClientFromWindow, RpcClient } from "./rpcClient.js";
 export { BytesUtils } from "./bytes.js";
 export { sha256, poseidonHash } from "./hash.js";
 export { dateToEpoch, epochIntToBytes, epochBytesToInt } from "./epoch.js";
diff --git a/packages/rln/src/utils/metamask.ts b/packages/rln/src/utils/metamask.ts
deleted file mode 100644
index 83c7066106..0000000000
--- a/packages/rln/src/utils/metamask.ts
+++ /dev/null
@@ -1,17 +0,0 @@
-import { ethers } from "ethers";
-
-export const extractMetaMaskSigner = async (): Promise<ethers.Signer> => {
-  // eslint-disable-next-line @typescript-eslint/no-explicit-any
-  const ethereum = (window as any).ethereum;
-
-  if (!ethereum) {
-    throw Error(
-      "Missing or invalid Ethereum provider. Please install a Web3 wallet such as MetaMask."
-    );
-  }
-
-  await ethereum.request({ method: "eth_requestAccounts" });
-  const provider = new ethers.providers.Web3Provider(ethereum, "any");
-
-  return provider.getSigner();
-};
diff --git a/packages/rln/src/utils/rpcClient.ts b/packages/rln/src/utils/rpcClient.ts
new file mode 100644
index 0000000000..585adf1a9d
--- /dev/null
+++ b/packages/rln/src/utils/rpcClient.ts
@@ -0,0 +1,57 @@
+import "viem/window";
+import {
+  type Address,
+  createWalletClient,
+  custom,
+  PublicActions,
+  publicActions,
+  WalletClient
+} from "viem";
+import { lineaSepolia } from "viem/chains";
+
+export type RpcClient = WalletClient & PublicActions;
+
+/**
+ * Checks window for injected Ethereum provider, requests user to connect, and creates an RPC client object
+ * capable of performing both read and write operations on the blockchain.
+ *
+ * If the wallet is not connected to the Linea Sepolia network, it will attempt to switch to it.
+ * If the wallet does not have the Linea Sepolia network added, it will attempt to add it.
+ */
+export const createViemClientFromWindow = async (): Promise<RpcClient> => {
+  const ethereum = window.ethereum;
+
+  if (!ethereum) {
+    throw Error(
+      "Missing or invalid Ethereum provider. Please install a Web3 wallet such as MetaMask."
+    );
+  }
+
+  const [account] = await ethereum.request({ method: "eth_requestAccounts" });
+
+  const rpcClient: RpcClient = createWalletClient({
+    account: account as Address,
+    chain: lineaSepolia,
+    transport: custom(window.ethereum!)
+  }).extend(publicActions);
+
+  // Ensure wallet is connected to Linea Sepolia
+  try {
+    await rpcClient.switchChain({ id: lineaSepolia.id });
+  } catch (error: unknown) {
+    // This error code indicates that the chain has not been added to the wallet
+    if (
+      typeof error === "object" &&
+      error !== null &&
+      "code" in error &&
+      error.code === 4902
+    ) {
+      await rpcClient.addChain({ chain: lineaSepolia });
+      await rpcClient.switchChain({ id: lineaSepolia.id });
+    } else {
+      throw error;
+    }
+  }
+
+  return rpcClient;
+};
diff --git a/packages/rln/tsconfig.dev.json b/packages/rln/tsconfig.dev.json
index 96c99dc461..d53a621c4f 100644
--- a/packages/rln/tsconfig.dev.json
+++ b/packages/rln/tsconfig.dev.json
@@ -1,3 +1,4 @@
 {
-  "extends": "../../tsconfig.dev"
-} 
\ No newline at end of file
+  "extends": "../../tsconfig.dev",
+  "exclude": ["wagmi.config.ts"]
+}
diff --git a/packages/rln/tsconfig.json b/packages/rln/tsconfig.json
index 6f8756934b..f31944719d 100644
--- a/packages/rln/tsconfig.json
+++ b/packages/rln/tsconfig.json
@@ -6,5 +6,5 @@
     "tsBuildInfoFile": "dist/.tsbuildinfo"
   },
   "include": ["src"],
-  "exclude": ["src/**/*.spec.ts", "src/test_utils"]
-} 
\ No newline at end of file
+  "exclude": ["wagmi.config.ts", "src/**/*.spec.ts", "src/test_utils"]
+}
diff --git a/packages/rln/wagmi.config.ts b/packages/rln/wagmi.config.ts
new file mode 100644
index 0000000000..bffe3f0576
--- /dev/null
+++ b/packages/rln/wagmi.config.ts
@@ -0,0 +1,18 @@
+import { defineConfig } from "@wagmi/cli";
+import { foundry } from "@wagmi/cli/plugins";
+
+export default defineConfig({
+  out: "src/contract/wagmi/generated.ts",
+  plugins: [
+    foundry({
+      project: "./waku-rlnv2-contract",
+      artifacts: "out",
+      include: [
+        "WakuRlnV2.sol/**",
+        "Membership.sol/**",
+        "LinearPriceCalculator.sol/**",
+        "IPriceCalculator.sol/**"
+      ]
+    })
+  ]
+});