LangChain is an open-source LLM application framework founded by Harrison Chase in 2022. LangChain, LangSmith, LangGraph and LangServe form an end-to-end toolchain from prototype to production, with 100k+ GitHub stars.
Provider
1 results shownArticle
1 results shownLangChain Development Guide: From LCEL to Production Agents
LangChain is one of the most popular frameworks for building LLM applications. This guide covers its unified model interface, LCEL composable chains, tool calling, memory management, and agent development with practical advice.