x402 Precheck for LangChain
dev.workers.w0arvg81zlgf.x402-precheck/precheck
Check an x402 payment challenge before your agent pays: network, USDC, amount, payTo, facilitator.
client:LangChain
transport:streamable-http
tools:1
Install x402 Precheck in LangChain
pip install langchain-mcp-adapters
from langchain_mcp_adapters.client import MultiServerMCPClient
client = MultiServerMCPClient({
"precheck": {
"transport": "streamable_http",
"url": "https://x402-precheck.w0arvg81zlgf.workers.dev/mcp",
}
})
tools = await client.get_tools()
get_tools() returns the server's tools as LangChain tools, ready for an agent. LangChain docs