Open source for data and AI

748 projects · 100 relicensed

LangChain license, foundation and stars

LLM application frameworks · MIT (open source) · backed by LangChain · 148,880 stars

GitHub

The agent engineering platform.

License history

LICENSE file

MIT No license change recorded since the repository was created in 2022.

Latest release

langchain-core==1.6.5 published Sep 24, 2026

About and history
Repository
langchain-ai/langchain · created Oct 17, 2022
Website
docs.langchain.com/langchain
Language
Python
Foundation
None; run by LangChain
Company
LangChain · on Companies · on advisories · on awards · on Rounds · on problems · on Releases · on salaries · on standards · on Titlewave
GitHub detects
MIT
Stars per week
308 (GitHub weekly snapshots)

Weekly snapshots

Week ofStars
Nov 2, 2026148,880
Oct 19, 2026148,269
Oct 12, 2026147,843
Sep 28, 2026147,431
Sep 21, 2026147,034

Changes

Stars per weekNov 2, 2026

Gains about 308 stars a week, down from 309.

Stars per weekOct 22, 2026

Gains about 309 stars a week, up from 270.

Stars per weekOct 14, 2026

Gains about 270 stars a week, down from 397.

Stars per weekOct 4, 2026

Gains about 397 stars a week, down from 469.

TrackedSep 24, 2026

Now tracked, from langchain-ai/langchain on GitHub.