LangChain is a framework for developing applications powered by large language models (LLMs).
LangChain simplifies every stage of the LLM application lifecycle:
Build your applications using LangChain's open-source building blocks and components. Hit the ground running using third-party integrations and Templates.
Use LangSmith to inspect, monitor and evaluate your chains, so that you can continuously optimize and deploy with confidence.
Turn any chain into an API with LangServe.