v2: Clean up paywall (#710)

* Remove cdpClientKey and sessionTokenEndpoint from PaywallConfig

Remove Onramp functionality from EvmPaywall

Remove Coinbase fields from paywall template generation

* Migrate site to @x402/next with v2 protocol support

* Clean up tests

* remove CDP onramp from core paywall

* Update templates and build process

* Format

* Lockfile

* mock templates for CI

* Format

* Generate new templates

* Format

Author: apmcdermott

go/http/evm_paywall_template.go

@@ -65,7 +65,7 @@ def require_payment(
         network (str, optional): Ethereum network ID. Defaults to "base-sepolia" (Base Sepolia testnet).
         resource (Optional[str], optional): Resource URL. Defaults to None (uses request URL).
         paywall_config (Optional[PaywallConfig], optional): Configuration for paywall UI customization.
-            Includes options like cdp_client_key, app_name, app_logo, session_token_endpoint.
+            Includes options like app_name, app_logo.
         custom_paywall_html (Optional[str], optional): Custom HTML to display for paywall instead of default.
 
     Returns:

go/http/svm_paywall_template.go

@@ -3,7 +3,15 @@
 
 from x402.types import PaymentRequirements, PaywallConfig
 from x402.common import x402_VERSION
-from x402.template import PAYWALL_TEMPLATE
+from x402.evm_paywall_template import EVM_PAYWALL_TEMPLATE
+from x402.svm_paywall_template import SVM_PAYWALL_TEMPLATE
+
+
+def get_paywall_template(network: str) -> str:
+    """Get the appropriate paywall template for the given network."""
+    if network.startswith("solana:"):
+        return SVM_PAYWALL_TEMPLATE
+    return EVM_PAYWALL_TEMPLATE
 
 
 def is_browser_request(headers: Dict[str, Any]) -> bool:
@@ -63,10 +71,8 @@ def create_x402_config(
         "currentUrl": current_url,
         "error": error,
         "x402_version": x402_VERSION,
-        "cdpClientKey": config.get("cdp_client_key", ""),
         "appName": config.get("app_name", ""),
         "appLogo": config.get("app_logo", ""),
-        "sessionTokenEndpoint": config.get("session_token_endpoint", ""),
     }
 
 
@@ -114,6 +120,10 @@ def get_paywall_html(
     Returns:
         Complete HTML with injected payment data
     """
+    if not payment_requirements:
+        raise ValueError("payment_requirements cannot be empty")
+    network = payment_requirements[0].network
+    template = get_paywall_template(network)
     return inject_payment_data(
-        PAYWALL_TEMPLATE, error, payment_requirements, paywall_config
+        template, error, payment_requirements, paywall_config
     )

python/x402/src/x402/evm_paywall_template.py

@@ -218,10 +218,8 @@ class UnsupportedSchemeException(Exception):
 class PaywallConfig(TypedDict, total=False):
     """Configuration for paywall UI customization"""
 
-    cdp_client_key: str
     app_name: str
     app_logo: str
-    session_token_endpoint: str
 
 
 class DiscoveredResource(BaseModel):

python/x402/src/x402/fastapi/middleware.py

@@ -379,10 +379,8 @@ def test_paywall_config_injection():
     """Test that paywall configuration is properly injected into HTML."""
     # Use a plain dict that will be compatible with PaywallConfig
     paywall_config = {
-        "cdp_client_key": "test-key-123",
         "app_name": "Test Application",
         "app_logo": "https://example.com/logo.png",
-        "session_token_endpoint": "https://example.com/token",
     }
 
     app = FastAPI()
@@ -409,7 +407,6 @@ def test_paywall_config_injection():
 
     html_content = response.text
     assert "window.x402" in html_content
-    assert '"cdpClientKey": "test-key-123"' in html_content
     assert '"appName": "Test Application"' in html_content
     assert '"appLogo": "https://example.com/logo.png"' in html_content
     assert '"amount": 2.5' in html_content