Langchain Mcp

Langchain MCP is an open-source MCP (Model Context Protocol) server designed to provide semantic and source code search across the documentation and repositories of the LangChain ecosystem, including LangChain, LangGraph, LangSmith, and DeepAgents. It enables AI assistants like Claude, Cursor, and other MCP-compatible clients to access tools that support natural-language search, code lookup, and documentation reference. The server is production-ready, scalable, and supports authentication, usage tracking, and multiple embedding providers, making it ideal for developers, AI engineers, and teams building with or supporting LangChain technologies.