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LangChain

Agent402.Tools: pay-per-call web tools for LangChain

io.github.mikeypetrillo/agent402

Agentic Finance: 500+ agent tools, multi-chain USDC over x402 or MPP, free via PoW or card credits

client:LangChain transport:streamable-http runtime:npm tools:15

Install Agent402.Tools: pay-per-call web tools in LangChain

pip install langchain-mcp-adapters

from langchain_mcp_adapters.client import MultiServerMCPClient

client = MultiServerMCPClient({
        "agent402": {
            "transport": "streamable_http",
            "url": "https://agent402.tools/mcp",
        }
})

tools = await client.get_tools()

get_tools() returns the server's tools as LangChain tools, ready for an agent. LangChain docs

What LangChain can do once it is connected

Agent402.Tools: pay-per-call web tools in other clients