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@langchain-ai

LangChain

README.md

The agent engineering platform.

Core OSS libraries:

Commercial Platform:

  • LangSmith – platform for building and monitoring production-grade LLM applications

OSS extensions and apps:

  • Deep Agents Code - dcode is an open-source coding agent in your terminal, similar to Claude Code or Cursor, powered by any LLM
  • Open SWE – open-source asynchronous coding agent
  • OpenWiki - CLI agent for codebase and personal memory wiki generation & maintenance.
  • Agent Protocol – our attempt at codifying the framework-agnostic APIs that are needed to serve LLM agents in production

Learn more

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Repositories

Showing 10 of 264 repositories
  • open-swe Public

    An Open-Source Asynchronous Coding Agent

    langchain-ai/open-swe's past year of commit activity
    Python 10,802 MIT 1,297 0 105 Updated Oct 5, 2026
  • langsmith-claude-code-plugins Public

    LangSmith plugins for Claude Code

    langchain-ai/langsmith-claude-code-plugins's past year of commit activity
    TypeScript 73 MIT 15 0 6 Updated Oct 5, 2026
  • langsmith-cursor-plugins Public

    LangSmith plugins for Cursor

    langchain-ai/langsmith-cursor-plugins's past year of commit activity
    TypeScript 4 2 2 12 Updated Oct 5, 2026
  • social-media-agent Public

    📲 An agent for sourcing, curating, and scheduling social media posts with human-in-the-loop.

    langchain-ai/social-media-agent's past year of commit activity
    TypeScript 2,826 MIT 516 14 8 Updated Oct 5, 2026
  • langsmith-codex-plugins Public

    LangSmith plugin for OpenAI Codex

    langchain-ai/langsmith-codex-plugins's past year of commit activity
    TypeScript 14 MIT 4 1 10 Updated Oct 5, 2026
  • langchain-redis Public
    langchain-ai/langchain-redis's past year of commit activity
    Python 69 MIT 37 1 4 Updated Oct 5, 2026
  • docs Public

    Unified LangChain documentation.

    langchain-ai/docs's past year of commit activity
    MDX 424 MIT 2,736 245 123 Updated Oct 5, 2026
  • langchain-azure Public

    Build secure LangChain applications on Azure

    langchain-ai/langchain-azure's past year of commit activity
    Jupyter Notebook 147 MIT 94 10 (1 issue needs help) 29 Updated Oct 5, 2026
  • langsmith-cli Public

    A coding agent-first CLI for interacting with LangSmith.

    langchain-ai/langsmith-cli's past year of commit activity
    Go 77 MIT 19 10 59 Updated Oct 5, 2026
  • agent-chat-ui Public

    🦜💬 Web app for interacting with any LangGraph agent (PY & TS) via a chat interface.

    langchain-ai/agent-chat-ui's past year of commit activity
    TypeScript 3,198 MIT 692 57 34 Updated Oct 5, 2026
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