LangChain

LLM Frameworks

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

GitHub →Website →

8.9

GitHub Metrics

Stars

133.6k

Forks

22.1k

Open Issues

519

Watchers

853

Contributors

3.7k

Weekly Commits

Language

Python

License

MIT

Last Commit

Apr 14, 2026

Created

Oct 17, 2022

Latest Release

langchain-core==1.2.29

Release Date

Apr 14, 2026

Synced: Apr 15, 2026

Quality Scores

Documentation Qualityw: 20%

8.2

Has docs site (https://langchain.com). Description: 66 chars. Stars signal: 133,550. Contributors: 3670. Score: 8.2/10

Community Healthw: 20%

9.8

Stars: 133,550. Contributors: 3670. Watchers: 853. Forks: 22,064. Issue ratio: 0.4%. Score: 9.8/10

Maintenance Velocityw: 15%

9.5

Last commit: 0d ago. Weekly commits: 18. Latest release: langchain-core==1.2.29. Maturity bonus: 3.5y old. Score: 9.5/10

API Design & DXw: 20%

8.4

Stars/issues ratio: 257. Dynamic language: Python. Has documentation site. Permissive license: MIT. Popularity signal: 133,550 stars. Score: 8.4/10

Production Readinessw: 15%

8.6

Battle-tested: 133,550 stars. Peer review: 3670 contributors. Versioned: langchain-core==1.2.29. Licensed: MIT. Age: 3.5 years. Maintenance: last commit 0d ago. Score: 8.6/10

Ecosystem Integrationw: 10%

8.9

Fork interest: 22,064. Major ecosystem: Python. Integration-friendly: MIT. Adoption: 133,550 stars. Has web presence. Score: 8.9/10