diff --git a/src/wallet/walletconnect/WalletConnectV2.ts b/src/wallet/walletconnect/WalletConnectV2.ts
index bdcdb636..4b5ead14 100644
--- a/src/wallet/walletconnect/WalletConnectV2.ts
+++ b/src/wallet/walletconnect/WalletConnectV2.ts
@@ -183,7 +183,7 @@ export class WalletConnectV2 {
   public async signAmino(
     chainId: string,
     signerAddress: string,
-    stdSignDoc: StdSignDoc
+    stdSignDoc: StdSignDoc,
   ): Promise<SignAminoResponse> {
     const { signature, signed } = await this.request<WcSignAminoResponse>(
       chainId,
@@ -202,7 +202,7 @@ export class WalletConnectV2 {
   public async signDirect(
     chainId: string,
     signerAddress: string,
-    signDoc: SignDoc
+    signDoc: SignDoc,
   ): Promise<SignDirectResponse> {
     const { signature, signed } = await this.request<WcSignDirectResponse>(
       chainId,
@@ -264,7 +264,7 @@ export class WalletConnectV2 {
     }
   }
 
-  private async request<T>(chainId: string, method: Method, params: unknown) {
+  protected async request<T>(chainId: string, method: Method, params: unknown) {
     const session = localStorage.getItem(this.sessionStorageKey);
     if (!session || !this.signClient) {
       throw new Error("Session not found for " + chainId);
diff --git a/src/wallet/walletconnect/WalletConnectV2Keplr.ts b/src/wallet/walletconnect/WalletConnectV2Keplr.ts
new file mode 100644
index 00000000..6be0c9af
--- /dev/null
+++ b/src/wallet/walletconnect/WalletConnectV2Keplr.ts
@@ -0,0 +1,96 @@
+import { SignDoc, StdSignDoc } from "cosmes/registry";
+
+import { MobileAppDetails } from "./QRCodeModal";
+import { WalletConnectV2 } from "./WalletConnectV2";
+
+/**
+ * The data returned by the `cosmos_signAmino` method. `signed` is optional
+ * because some wallets (like Cosmostation) may not return it.
+ */
+type WcSignAminoResponse = {
+  signature: {
+    signature: string;
+  };
+  signed?: StdSignDoc | undefined;
+};
+type SignAminoResponse = Required<WcSignAminoResponse>;
+
+/**
+ * The data returned by the `cosmos_signDirect` method. `signed` is optional
+ * because some wallets (like Cosmostation) may not return it.
+ */
+type WcSignDirectResponse = {
+  signature: {
+    signature: string;
+  };
+  signed?: SignDoc | undefined;
+};
+type SignDirectResponse = Required<WcSignDirectResponse>;
+
+const Method = {
+  GET_ACCOUNTS: "cosmos_getAccounts",
+  SIGN_AMINO: "cosmos_signAmino",
+  SIGN_DIRECT: "cosmos_signDirect",
+} as const;
+type Method = (typeof Method)[keyof typeof Method];
+
+export interface SignOptions {
+  readonly preferNoSetFee?: boolean;
+  readonly preferNoSetMemo?: boolean;
+  readonly disableBalanceCheck?: boolean;
+}
+
+export class WalletConnectV2Keplr extends WalletConnectV2 {
+  defaultOptions: {
+    sign: { preferNoSetFee: boolean; preferNoSetMemo: boolean };
+  };
+
+  constructor(projectId: string, mobileAppDetails: MobileAppDetails) {
+    super(projectId, mobileAppDetails);
+    this.defaultOptions = {
+      sign: { preferNoSetFee: true, preferNoSetMemo: true },
+    };
+  }
+
+  public async signAminoKeplr(
+    chainId: string,
+    signerAddress: string,
+    stdSignDoc: StdSignDoc,
+    signOptions: SignOptions,
+  ): Promise<SignAminoResponse> {
+    const { signature, signed } = await this.request<WcSignAminoResponse>(
+      chainId,
+      Method.SIGN_AMINO,
+      {
+        signerAddress,
+        signDoc: stdSignDoc,
+        signOptions: signOptions,
+      }
+    );
+    return {
+      signature: signature,
+      signed: signed ?? stdSignDoc, // simply return the original sign doc if `signed` is not returned
+    };
+  }
+
+  public async signDirectKeplr(
+    chainId: string,
+    signerAddress: string,
+    signDoc: SignDoc,
+    signOptions: SignOptions,
+  ): Promise<SignDirectResponse> {
+    const { signature, signed } = await this.request<WcSignDirectResponse>(
+      chainId,
+      Method.SIGN_DIRECT,
+      {
+        signerAddress,
+        signDoc,
+        signOptions:signOptions
+      }
+    );
+    return {
+      signature: signature,
+      signed: signed ?? signDoc, // simply return the original sign doc if `signed` is not returned
+    };
+  }
+}
diff --git a/src/wallet/wallets/cosmostation/CosmostationController.ts b/src/wallet/wallets/cosmostation/CosmostationController.ts
index 8c2ab6c9..d7ad99a6 100644
--- a/src/wallet/wallets/cosmostation/CosmostationController.ts
+++ b/src/wallet/wallets/cosmostation/CosmostationController.ts
@@ -4,19 +4,19 @@ import { base64 } from "cosmes/codec";
 import { WalletName } from "../../constants/WalletName";
 import { WalletType } from "../../constants/WalletType";
 import { onWindowEvent } from "../../utils/window";
-import { WalletConnectV2 } from "../../walletconnect/WalletConnectV2";
 import { ConnectedWallet } from "../ConnectedWallet";
 import { ChainInfo, WalletController } from "../WalletController";
 import { WalletError } from "../WalletError";
 import { CosmostationExtension } from "./CosmostationExtension";
 import { CosmostationWalletConnectV2 } from "./CosmostationWalletConnectV2";
+import { WalletConnectV2Keplr } from "../../walletconnect/WalletConnectV2Keplr";
 
 export class CosmostationController extends WalletController {
-  private readonly wc: WalletConnectV2;
+  private readonly wc: WalletConnectV2Keplr;
 
   constructor(wcProjectId: string) {
     super(WalletName.COSMOSTATION);
-    this.wc = new WalletConnectV2(wcProjectId, {
+    this.wc = new WalletConnectV2Keplr(wcProjectId, {
       // https://github.com/cosmostation/cosmostation-wc-modal/blob/main/src/modal.tsx#L22-L34
       name: "Cosmostation",
       android:
diff --git a/src/wallet/wallets/keplr/KeplrController.ts b/src/wallet/wallets/keplr/KeplrController.ts
index 7d80b021..c8948a64 100644
--- a/src/wallet/wallets/keplr/KeplrController.ts
+++ b/src/wallet/wallets/keplr/KeplrController.ts
@@ -4,19 +4,19 @@ import { base64 } from "cosmes/codec";
 import { WalletName } from "../../constants/WalletName";
 import { WalletType } from "../../constants/WalletType";
 import { onWindowEvent } from "../../utils/window";
-import { WalletConnectV2 } from "../../walletconnect/WalletConnectV2";
 import { ConnectedWallet } from "../ConnectedWallet";
 import { ChainInfo, WalletController } from "../WalletController";
 import { WalletError } from "../WalletError";
 import { KeplrExtension } from "./KeplrExtension";
 import { KeplrWalletConnectV2 } from "./KeplrWalletConnectV2";
+import { WalletConnectV2Keplr } from "cosmes/wallet/walletconnect/WalletConnectV2Keplr";
 
 export class KeplrController extends WalletController {
-  private readonly wc: WalletConnectV2;
+  private readonly wc: WalletConnectV2Keplr;
 
   constructor(wcProjectId: string) {
     super(WalletName.KEPLR);
-    this.wc = new WalletConnectV2(wcProjectId, {
+    this.wc = new WalletConnectV2Keplr(wcProjectId, {
       // https://github.com/chainapsis/keplr-wallet/blob/master/packages/wc-qrcode-modal/src/modal.tsx#L61-L75
       name: "Keplr",
       android:
diff --git a/src/wallet/wallets/keplr/KeplrWalletConnectV2.ts b/src/wallet/wallets/keplr/KeplrWalletConnectV2.ts
index a8fc564d..8fbf4531 100644
--- a/src/wallet/wallets/keplr/KeplrWalletConnectV2.ts
+++ b/src/wallet/wallets/keplr/KeplrWalletConnectV2.ts
@@ -13,20 +13,20 @@ import {
 } from "cosmes/protobufs";
 import { WalletError, WalletName, WalletType } from "cosmes/wallet";
 
-import { WalletConnectV2 } from "../../walletconnect/WalletConnectV2";
 import {
   ConnectedWallet,
   SignArbitraryResponse,
   UnsignedTx,
 } from "../ConnectedWallet";
+import { WalletConnectV2Keplr } from "../../walletconnect/WalletConnectV2Keplr";
 
 export class KeplrWalletConnectV2 extends ConnectedWallet {
-  private readonly wc: WalletConnectV2;
+  private readonly wc: WalletConnectV2Keplr;
   private readonly useAmino: boolean;
 
   constructor(
     walletName: WalletName,
-    wc: WalletConnectV2,
+    wc: WalletConnectV2Keplr,
     chainId: string,
     pubKey: Secp256k1PubKey,
     address: string,
@@ -72,15 +72,20 @@ export class KeplrWalletConnectV2 extends ConnectedWallet {
       memo,
       timeoutHeight,
     };
+    const signOptions = {
+      preferNoSetFee: true,
+      preferNoSetMemo: true,
+    };
+
     let txRaw: TxRaw;
     if (this.useAmino) {
       const { signed, signature } = await WalletError.wrap(
-        this.wc.signAmino(this.chainId, this.address, tx.toStdSignDoc(params))
+        this.wc.signAminoKeplr(this.chainId, this.address, tx.toStdSignDoc(params), signOptions)
       );
       txRaw = tx.toSignedAmino(signed, signature.signature);
     } else {
       const { signed, signature } = await WalletError.wrap(
-        this.wc.signDirect(this.chainId, this.address, tx.toSignDoc(params))
+        this.wc.signDirectKeplr(this.chainId, this.address, tx.toSignDoc(params), signOptions)
       );
       txRaw = tx.toSignedDirect(signed, signature.signature);
     }
diff --git a/src/wallet/wallets/leap/LeapController.ts b/src/wallet/wallets/leap/LeapController.ts
index 855855a2..b2e2e894 100644
--- a/src/wallet/wallets/leap/LeapController.ts
+++ b/src/wallet/wallets/leap/LeapController.ts
@@ -4,19 +4,19 @@ import { base64 } from "cosmes/codec";
 import { WalletName } from "../../constants/WalletName";
 import { WalletType } from "../../constants/WalletType";
 import { onWindowEvent } from "../../utils/window";
-import { WalletConnectV2 } from "../../walletconnect/WalletConnectV2";
 import { ConnectedWallet } from "../ConnectedWallet";
 import { ChainInfo, WalletController } from "../WalletController";
 import { WalletError } from "../WalletError";
 import { LeapExtension } from "./LeapExtension";
 import { LeapWalletConnectV2 } from "./LeapWalletConnectV2";
+import { WalletConnectV2Keplr } from "../../walletconnect/WalletConnectV2Keplr";
 
 export class LeapController extends WalletController {
-  private readonly wc: WalletConnectV2;
+  private readonly wc: WalletConnectV2Keplr;
 
   constructor(wcProjectId: string) {
     super(WalletName.LEAP);
-    this.wc = new WalletConnectV2(wcProjectId, {
+    this.wc = new WalletConnectV2Keplr(wcProjectId, {
       name: "Leap",
       android:
         "leapcosmos://wcV2#Intent;package=io.leapwallet.cosmos;scheme=leapwallet;end;",