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

Main OSS libraries:

Products:

  • LangSmith - the platform for building production-grade LLM applications

OSS extensions:

  • LangServe - deploy LangChain runnables and chains as a REST API (Python)
  • OpenGPTs - Open-source effort to create a similar experience to OpenAI's GPTs and Assistants API (Python)

Live demos:

  • ChatLangChain - LangChain-powered chatbot focused on question answering over the LangChain documentation (Python)
  • ChatLangChain.js - ChatLangChain in JavaScript (JavaScript/TypeScript)
  • WebLangChain - LangChain-powered web research chatbot (Python)
  • Open Canvas - Document & chat based UX for writing code or markdown. (TypeScript) (Inspired by OpenAI's "Canvas")

Learn more

Section Description
Company Website LangChain product and company info
Python Documentation Get started with the Python library
JavaScript Documentation Get started with the JavaScript library

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Repositories

Showing 10 of 138 repositories
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    langchain-ai/langgraph’s past year of commit activity
    Python 8,240 MIT 1,323 56 35 Updated Jan 21, 2025
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    langchain-ai/langchain-azure’s past year of commit activity
    Python 14 MIT 9 8 0 Updated Jan 20, 2025
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    langchain-ai/social-media-agent’s past year of commit activity
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    langchain-ai/langsmith-sdk’s past year of commit activity
    Python 460 MIT 89 74 48 Updated Jan 20, 2025
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    langchain-ai/langchain-elastic’s past year of commit activity
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  • langchain-ai/langchain-api-docs-html’s past year of commit activity
    HTML 3 MIT 3 0 0 Updated Jan 20, 2025
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