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LangChain · GitHub
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:
Open SWE – open source asynchronous coding agent
MCP Adapters – make MCP tools compatible with LangChain and LangGraph
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
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