LangChain

LLM Frameworks

LangChain — a leading open-source project in the AI/LLM ecosystem.

GitHub →Website →

8.9

GitHub Metrics

Stars

127.8k

Forks

21.0k

Open Issues

420

Watchers

818

Contributors

3.6k

Weekly Commits

Language

Python

License

MIT

Last Commit

Feb 28, 2026

Created

Oct 17, 2022

Latest Release

langchain-core==1.2.16

Release Date

Feb 25, 2026

Synced: Feb 28, 2026

Quality Scores

Documentation Qualityw: 20%

8.2

Has docs site (https://langchain.com). Description: 66 chars. Stars signal: 127,755. Contributors: 3649. Score: 8.2/10

Community Healthw: 20%

9.8

Stars: 127,755. Contributors: 3649. Watchers: 818. Forks: 20,986. Issue ratio: 0.3%. Score: 9.8/10

Maintenance Velocityw: 15%

9.5

Last commit: 0d ago. Weekly commits: 19. Latest release: langchain-core==1.2.16. Maturity bonus: 3.4y old. Score: 9.5/10

API Design & DXw: 20%

8.4

Stars/issues ratio: 304. Dynamic language: Python. Has documentation site. Permissive license: MIT. Popularity signal: 127,755 stars. Score: 8.4/10

Production Readinessw: 15%

8.6

Battle-tested: 127,755 stars. Peer review: 3649 contributors. Versioned: langchain-core==1.2.16. Licensed: MIT. Age: 3.4 years. Maintenance: last commit 0d ago. Score: 8.6/10

Ecosystem Integrationw: 10%

8.9

Fork interest: 20,986. Major ecosystem: Python. Integration-friendly: MIT. Adoption: 127,755 stars. Has web presence. Score: 8.9/10