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LangSmith MCP

Name: LangSmith MCP
Author: langchain-ai

Updated June 2026

The LangSmith MCP MCP server, built by langchain-ai, provides langChain's LLM observability and evaluation platform. It is community-built and best for AI & ML.

by langchain-ai

About

LangChain's LLM observability and evaluation platform. Trace, debug, and evaluate LLM application runs, compare prompts, and monitor production performance via LangSmith API.

Installation

pip

pip install langsmith-mcp

Works With

🟣Claude Desktop ⚡Cursor 💙VS Code 🤖Cline

Frequently Asked Questions

What is LangSmith MCP?

LangSmith MCP is an MCP server built by langchain-ai. LangChain's LLM observability and evaluation platform. Trace, debug, and evaluate LLM application runs, compare prompts, and monitor production performance via LangSmith API.

Who built LangSmith MCP?

LangSmith MCP was built by langchain-ai.

Is LangSmith MCP free?

Yes, LangSmith MCP has a free option. This MCP server is free and open-source. Check the GitHub repository for details.

How do I install LangSmith MCP?

Install LangSmith MCP with pip: pip install langsmith-mcp

What does LangSmith MCP integrate with?

LangSmith MCP integrates with Claude Desktop, Cursor, VS Code, Cline.

View on GitHub Visit Website

Repo Health

Local install

Local/stdio install — runs on your machine, so there is no remote endpoint to verify live. Trust signal below is from the source repo.

Repo recency not yet available for this server.

Quick Info

Install Type: pip
Author: langchain-ai
Categories: 2
Integrations: 4

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