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LangChain

Tollkit for LangChain

io.github.ultrastarz/x402-extract

Extract product data, or notarize what a page said. Paid per call in USDC, no signup or API key.

client:LangChain transport:streamable-http tools:9

Install Tollkit in LangChain

pip install langchain-mcp-adapters

from langchain_mcp_adapters.client import MultiServerMCPClient

client = MultiServerMCPClient({
        "x402-extract": {
            "transport": "streamable_http",
            "url": "https://extract.tollkit.dev/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

Tollkit in other clients