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LangChain MCP

LangChain MCP provides a bridge between the LangChain framework and the MCP protocol. Expose LangChain tools as MCP resources, connect MCP servers as LangChain tools, orchestrate multi-step agent workflows, and leverage LangChain's extensive tool ecosystem within any MCP client.

Stars

1.2k

Installs

72.0k

License

MIT

Kind

MCP

Trust evidence

Verified

Verified MCP — curated catalog entry with reviewed setup metadata.

  • Stars: 1.2k · catalog
  • Freshness: Updated 2026-01-28
  • Used in 0 known stacks (editorial graph may still apply)

Prerequisites

  • · Host app that loads MCP config (Cursor, Claude Desktop, etc.)
  • · Environment: LANGCHAIN_API_KEY
  • · Python 3 + pip

Reference command

{
  "mcpServers": {
    "langchain": {
      "command": "python",
      "args": ["-m", "langchain_mcp"],
      "env": {
        "LANGCHAIN_API_KEY": "<your-api-key>"
      }
    }
  }
}

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