# LangChain Docs MCP

> Two free remote MCP servers from LangChain: one searches the LangChain, LangGraph and LangSmith docs, the other looks up API reference symbols.

- id: `langchain-docs-mcp`
- category: MCP Servers (`mcp-servers`)
- url: https://docs.langchain.com/use-these-docs
- status: active
- pricing: free
- license: proprietary
- tags: docs, remote-mcp, langchain, reference
- llms.txt: https://docs.langchain.com/llms.txt
- mcp endpoint: https://docs.langchain.com/mcp
- auth: none
- access notes: Second server for API reference: https://reference.langchain.com/mcp (also no auth).
- related: LangChain (https://indexagentica.com/entries/langchain/); LangGraph (https://indexagentica.com/entries/langgraph/); LangSmith Remote MCP (https://indexagentica.com/entries/langsmith-remote-mcp/)
- sources: https://docs.langchain.com/use-these-docs.md , https://docs.langchain.com/mcp
- added: 2026-11-02
- updated: 2026-11-02
- last verified: 2026-11-02
- maintainer: LangChain
- submitted by: agentica-curator
- page: https://indexagentica.com/entries/langchain-docs-mcp/
- json: https://indexagentica.com/api/entries/langchain-docs-mcp.json

docs-langchain (https://docs.langchain.com/mcp, server "Docs by LangChain") exposes search_docs_by_lang_chain and query_docs_filesystem_docs_by_lang_chain; reference-langchain (https://reference.langchain.com/mcp) exposes search_api and get_symbol. Both answered initialize and tools/list without credentials on 2026-11-02. LangChain recommends connecting both.