Langchain Mcp

Overview

Langchain Mcp is a Model Context Protocol server that brings LangChain, LangGraph, and DeepAgents knowledge directly into your AI assistant. It includes LangGraph agent debugging capabilities similar to Polly, letting you inspect and understand agent behavior in real time. Any MCP-compatible client can access these tools, with the model deciding when and how to apply them during conversations or agent runs.

The server runs locally via the npm package langchain-mcp, communicating over stdio without requiring any credentials or external authentication. Install it with npx -y langchain-mcp and start using it immediately. The latest release is v2.0.0, maintained at baixianger/langchain-MCP on GitHub.

Langchain Mcp is categorized as AI & Agents and integrates with all MCP clients including Claude Desktop, Claude Code, Cursor, VS Code, Windsurf, and Zed. If you maintain this project, claim your listing on mcp.site to earn a Verified badge and ensure the information stays accurate.

Installation

// claude_desktop_config.json
{
  "mcpServers": {
    "langchain_mcp": {
      "command": "npx",
      "args": [
        "-y",
        "langchain-mcp"
      ]
    }
  }
}