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LangChain

CNPJ for LangChain

io.github.mcp-dir/cnpj-mcp

Free Brazilian CNPJ lookup (legal name, status, partners) + lawsuit discovery. Public data, no login

client:LangChain transport:streamable-http tools:8

Install CNPJ in LangChain

pip install langchain-mcp-adapters

from langchain_mcp_adapters.client import MultiServerMCPClient

client = MultiServerMCPClient({
        "cnpj-mcp": {
            "transport": "streamable_http",
            "url": "https://api.mcp.ai/p_cnpj",
        }
})

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

CNPJ in other clients