AI repos for LangChain

Open-source AI projects built around LangChain or genuinely useful if you work with it, each with what it does for you. 5 repos, most relevant first.

  1. OpenTag Python LangGraph agent wired to AG-UI as a starting point to adapt. AI agents1.3k76
  2. litellm Acts as a drop-in provider layer for LangChain apps to switch models without rewriting code. Infrastructure & security61.9k1.8k
  3. NemoClaw Supports LangChain Deep Agents Code running inside OpenShell sandboxes. Infrastructure & security22.8k169
  4. openui Offers integration with LangChain-based apps for generative UI. Design & UI13.1k
  5. leanctx Wraps OpenAI, Anthropic and Gemini clients as drop-in replacements, so LangChain-style apps can cut token spend. Token & cost savings322

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