Haystack

RAG Libraries

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

GitHub →Website →

8.8

GitHub Metrics

Stars

26.3k

Forks

3.0k

Open Issues

115

Watchers

162

Contributors

431

Weekly Commits

Language

Python

License

Apache-2.0

Last Commit

Aug 27, 2026

Created

Nov 14, 2019

Latest Release

v3.1.0

Release Date

Aug 24, 2026

Synced: Aug 28, 2026

Quality Scores

Documentation Qualityw: 20%

8.1

Has docs site (https://haystack.deepset.ai). Description: 65 chars. Stars signal: 26,343. Contributors: 431. Score: 8.1/10

Community Healthw: 20%

9.1

Stars: 26,343. Contributors: 431. Watchers: 162. Forks: 3,046. Issue ratio: 0.4%. Score: 9.1/10

Maintenance Velocityw: 15%

9.8

Last commit: 0d ago. Weekly commits: 32. Latest release: v3.1.0. Maturity bonus: 6.8y old. Score: 9.8/10

API Design & DXw: 20%

8.4

Stars/issues ratio: 231. Dynamic language: Python. Has documentation site. Permissive license: Apache-2.0. Popularity signal: 26,343 stars. Score: 8.4/10

Production Readinessw: 15%

8.7

Battle-tested: 26,343 stars. Peer review: 431 contributors. Versioned: v3.1.0. Licensed: Apache-2.0. Age: 6.8 years. Maintenance: last commit 0d ago. Score: 8.7/10

Ecosystem Integrationw: 10%

8.7

Fork interest: 3,046. Major ecosystem: Python. Integration-friendly: Apache-2.0. Adoption: 26,343 stars. Has web presence. Score: 8.7/10