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@langchain-ai

LangChain

README.md

Build context-aware reasoning applications with LangChain’s flexible abstractions and AI-first toolkits.

Core OSS libraries:

Commercial Platform:

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

OSS extensions and apps:

  • ChatLangChain and ChatLangChain.js - chatbot for answering questions about LangChain's open source libraries
  • Open Canvas - document & chat-based UX for writing code or markdown. Inspired by OpenAI's Canvas (TypeScript)
  • OpenGPTs - open source version of OpenAI's GPTs API (Python)
  • Email assistant - AI assistant that helps you maintain your emails (Python)
  • LangChain + Next.js template - template LangChain.js + Next.js application
  • Social media agent - agent for sourcing, curating, and scheduling social media posts with human-in-the-loop (TypeScript)
  • 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 224 repositories
  • deepagents Public
    langchain-ai/deepagents’s past year of commit activity
    Python 4,638 MIT 679 19 24 Updated Oct 26, 2025
  • langchain-saq Public Forked from tobymao/saq

    SAQ Fork for LangChain

    langchain-ai/langchain-saq’s past year of commit activity
    Python 1 MIT 60 0 1 Updated Oct 26, 2025
  • intro-to-langsmith Public

    Resources for the LangSmith Academy Course

    langchain-ai/intro-to-langsmith’s past year of commit activity
    Jupyter Notebook 120 MIT 135 3 3 Updated Oct 27, 2025
  • langchain Public

    🦜🔗 Build context-aware reasoning applications

    langchain-ai/langchain’s past year of commit activity
    Python 118,105 MIT 19,445 165 (49 issues need help) 103 Updated Oct 26, 2025
  • langsmith-sdk Public

    LangSmith Client SDK Implementations

    langchain-ai/langsmith-sdk’s past year of commit activity
    Python 662 MIT 163 83 24 Updated Oct 27, 2025
  • docs Public

    🦜🔗 Docs for LangChain projects

    langchain-ai/docs’s past year of commit activity
    MDX 48 MIT 308 71 33 Updated Oct 26, 2025
  • langgraph Public

    Build resilient language agents as graphs.

    langchain-ai/langgraph’s past year of commit activity
    Python 20,228 MIT 3,567 148 (13 issues need help) 41 Updated Oct 26, 2025
  • langchain-academy Public
    langchain-ai/langchain-academy’s past year of commit activity
    Jupyter Notebook 2,151 1,439 25 16 Updated Oct 26, 2025
  • helm Public

    Repository hosting Langchain helm charts.

    langchain-ai/helm’s past year of commit activity
    Shell 69 Apache-2.0 29 2 0 Updated Oct 24, 2025
  • open-agent-platform Public

    An open-source, no-code agent building platform.

    langchain-ai/open-agent-platform’s past year of commit activity
    TypeScript 1,692 MIT 353 50 18 Updated Oct 24, 2025
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