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langchain-mcp

v1.2.8

Published

Give your AI assistant complete LangChain, LangGraph & LangSmith knowledge

Vulnerabilities

Powered byPowered by Snyk
  • 0High
  • 0Medium
  • 0Low

Links

Git

Maintainers

baixiangerbaixianger

Keywords

mcplangchainlanggraphlangsmithclaudeaidocumentation

Readme

langchain-mcp

MCP server for searching LangChain, LangGraph & LangSmith documentation and source code.

Installation

npm i -g langchain-mcp
langchain-mcp login
claude mcp add langchain-mcp -- npx langchain-mcp

Claude Desktop

Add to ~/Library/Application Support/Claude/claude_desktop_config.json:

{
  "mcpServers": {
    "langchain-mcp": {
      "command": "npx",
      "args": ["langchain-mcp"]
    }
  }
}

CLI Commands

langchain-mcp login    # Login with Google
langchain-mcp status   # Check login status and usage
langchain-mcp logout   # Logout

MCP Tools

| Tool | Description | |------|-------------| | search_docs | Search documentation, references, and tutorials about LangChain, LangGraph, LangSmith, and DeepAgents | | search_langchain_code | Search LangChain source code | | search_langgraph_code | Search LangGraph source code | | search_deepagents_code | Search DeepAgents source code |

Free Credits

New users get $5 free credits (~2000 searches).

Links

  • Website: https://langchain-mcp.xyz
  • GitHub: https://github.com/baixianger/langchain-mcp
  • Sponsor: https://ko-fi.com/baixianger

License

MIT