Langchain MCP
Website • Installation • Features • Documentation. It runs locally over stdio via the published package.
People connecting developer tools tools to Claude, Cursor, VS Code, or another MCP client. The project is written in TypeScript.
VERIFIED ACTIVE
LAST COMMIT 2026-07-19 · ★ 5 · #85 OF 139 MAINTAINED DEVELOPER TOOLS · VERIFIED 2026-08-25
TypeScript servers · how we verify → /methodology
01 · Install Langchain MCP
before you install - you'll need
The README does not document required environment variables for a basic install.
Claude Code
claude mcp add baixianger-langchain-mcp -- npx -y langchain-mcp Claude Desktop / Cursor / VS Code - add to config
{
"mcpServers": {
"baixianger-langchain-mcp": {
"command": "npx",
"args": [
"-y",
"langchain-mcp"
]
}
}
} Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.
Using another client? Same JSON, different key
Claude Desktop · mcpServers
Cursor · mcpServers
VS Code · servers
Windsurf · mcpServers
Zed · context_servers
Cline · mcpServers
Roo Code · mcpServers
Continue · mcpServers
LibreChat · mcpServers
Gemini CLI · mcpServers
Codex CLI · mcp_servers
Full setup guides: every client.
02 · Evidence
Security posture
What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.
runs as local process (stdio) - runs on your machine with your user's permissions
license no standard license detected - usage rights unclear; check the repo before commercial use
npm package langchain-mcp - unscoped; check the name against the project README before installing
registry namespace io.github.baixianger is GitHub-verified and matches the repo owner
03 · Who maintains Langchain MCP
langchain-mcp is maintained by baixianger. We track 2 MCP servers from baixianger - 2 actively maintained, 12 combined GitHub stars, oldest repo from Dec 2025. Full record: all servers from baixianger.
04 · Facts
- repository
- github.com/baixianger/langchain-mcp
- category
- developer tools - ranked #85 of 139 actively-maintained developer tools servers as of 2026-08-25.
- registry
- io.github.baixianger/langchain-mcp (active, first published 2026-01-03 · 2 versions)
- packages
- npm:langchain-mcp
05 · Langchain MCP FAQ
What is Langchain MCP?
Website • Installation • Features • Documentation. It runs locally over stdio via the published package.
Is Langchain MCP still maintained?
Yes - as of 2026-08-25, its last commit was 2026-07-19. We re-verify nightly.
How do I install Langchain MCP?
Run `npx -y langchain-mcp`. The README does not document required environment variables for a basic install. You can also paste the ready-made client config above.
Does Langchain MCP run locally?
Yes - it's a stdio server: it runs on your machine (via npx) with your user's permissions. Your data stays local unless the server itself calls external APIs.
06 · Alternatives to Langchain MCP
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