Expired60% confidenceFactExact time
LangChain was created by Harrison Chase in October 2022 and has evolved into a complete ecosystem comprising the LangChain core library, LangSmith, LangGraph, and LangServe.
2
Sources
60%
Confidence
Medium-term (~90 days)
Relevance
7/2/2026
First Seen
Valid until: 9/30/2026(expired)
Sources
AI Agent Hands-On Learning Path: A Complete Guide from Beginner to Enterprise-Level Development
bilibili伴你流水-共桃夭6/12/2026
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