Base USDC Payment Verifier (x402) for LangChain
com.onrender.x402-usdc-verify/base-usdc-verifier
Verify a Base tx is a confirmed native-USDC transfer to a recipient. Paid via x402, 0.01 USDC/call.
client:LangChain
transport:streamable-http
tools:2
Install Base USDC Payment Verifier (x402) in LangChain
pip install langchain-mcp-adapters
from langchain_mcp_adapters.client import MultiServerMCPClient
client = MultiServerMCPClient({
"base-usdc-verifier": {
"transport": "streamable_http",
"url": "https://x402-usdc-verify.onrender.com/mcp",
}
})
tools = await client.get_tools()
get_tools() returns the server's tools as LangChain tools, ready for an agent. LangChain docs