langchain-ai/langchain

The agent engineering platform.

About the project

LangChain is a framework for building software agents and applications powered by large language models, using reusable components and integrations. Developers use it to connect models, tools, and other services when creating AI applications and agent workflows. The catalogue includes MCP integrations and instructions related to LangChain.

This repository also configures its own agents. See what langchain tells them →

Open on GitHub docs.langchain.com

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docs-langchain

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langchain-ai/langchain

MCP server Claude CodeCodexCursor +2 ✓ vendor

One of 2 in .mcp.json

MCP server "docs-langchain", hosted remotely at docs.langchain.com, as configured in langchain-ai/langchain.

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reference-langchain

02

langchain-ai/langchain

MCP server Claude CodeCodexCursor +2 ✓ vendor

One of 2 in .mcp.json

MCP server "reference-langchain", hosted remotely at reference.langchain.com, as configured in langchain-ai/langchain.

not rated 148k +437 yesterday A tokens not measured original MIT