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LangChain

x402 Toolbox for LangChain

io.github.mayer-code/x402-toolbox

Free, read-only MCP subset of x402 Toolbox's cheap data endpoints, free via MCP.

client:LangChain transport:streamable-http tools:14

Install x402 Toolbox in LangChain

pip install langchain-mcp-adapters

from langchain_mcp_adapters.client import MultiServerMCPClient

client = MultiServerMCPClient({
        "x402-toolbox": {
            "transport": "streamable_http",
            "url": "https://lab.paidapis.net/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

x402 Toolbox in other clients