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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 265 repositories
  • 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 12 Updated Oct 13, 2026
  • open-swe Public

    An Open-Source Asynchronous Coding Agent

    langchain-ai/open-swe's past year of commit activity
    Python 11,009 MIT 1,302 0 151 Updated Oct 13, 2026
  • langsmith-plugin-binary Public

    Shared build, sign, notarize and publish pipeline for the LangSmith plugin repos

    langchain-ai/langsmith-plugin-binary's past year of commit activity
    TypeScript 0 MIT 0 1 31 Updated Oct 12, 2026
  • chat-langchain Public
    langchain-ai/chat-langchain's past year of commit activity
    TypeScript 6,462 MIT 1,493 3 486 Updated Oct 12, 2026
  • deepagents Public

    The batteries-included agent harness.

    langchain-ai/deepagents's past year of commit activity
    Python 30,178 MIT 4,233 154 38 Updated Oct 13, 2026
  • docs Public

    Unified LangChain documentation.

    langchain-ai/docs's past year of commit activity
    MDX 429 MIT 2,742 264 159 Updated Oct 13, 2026
  • langsmith-sdk Public

    LangSmith Client SDK Implementations

    langchain-ai/langsmith-sdk's past year of commit activity
    Python 1,077 MIT 312 121 128 Updated Oct 13, 2026
  • langgraph-cua-py Public

    An implementation of a computer use agent (CUA) using LangGraph

    langchain-ai/langgraph-cua-py's past year of commit activity
    Python 216 MIT 42 3 3 Updated Oct 13, 2026
  • langgraph Public

    Build resilient agents.

    langchain-ai/langgraph's past year of commit activity
    Python 43,157 MIT 7,335 579 (11 issues need help) 228 Updated Oct 13, 2026
  • langchain-aws Public

    Build LangChain Applications on AWS

    langchain-ai/langchain-aws's past year of commit activity
    Python 351 MIT 318 65 (1 issue needs help) 44 Updated Oct 13, 2026
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