LangChain
agent-frameworkNo score yet
The agent engineering platform.
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138,946
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Forks
23,013
Contributors
3,688
npm DL / wk
2,367,100
PyPI DL / wk
76,110,395
Language
Python
Last push
2026-06-10
About LangChain
LangChain is a framework for building agents and LLM-powered applications. It helps you chain together interoperable components and third-party integrations to simplify AI application development — all while future-proofing decisions as the underlying technology evolves. model = init_chat_model("openai:gpt-5.4") result = model.invoke("Hello, world!") ``` If you're looking for more advanced customization or agent orchestration, check out LangGraph, our framework for building controllable agent workflows.
Read the full README on GitHub →
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- Is LangChain still maintained?
- Yes — actively maintained. The last push was on 2026-06-10, with 3,688 contributors.
- What are the best LangChain alternatives?
- Closest by category and size in our data: AutoGen, LlamaIndex, LiteLLM — full list with live signals above.
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Tracked since 2026-06-10 · data as of 2026-06-10 · 516 open issues · 1,271 releases