GitHub: langchain-ai/langchain

The agent engineering platform.

Stars: 144894 | Language: Python | Topics: agents, ai, ai-agents, anthropic, chatgpt, deepagents, enterprise, framework, gemini, generative-ai, langchain, langgraph, llm, multiagent, open-source, openai, pydantic, python, rag, typescript | Updated: 2026-08-24