Haystack

RAG Libraries

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

GitHub →Website →

8.7

GitHub Metrics

Stars

26.8k

Forks

3.3k

Open Issues

188

Watchers

164

Contributors

518

Weekly Commits

Language

Python

License

Apache-2.0

Last Commit

Oct 26, 2026

Created

Nov 14, 2019

Latest Release

v3.4.1

Release Date

Oct 21, 2026

Synced: Oct 27, 2026

Quality Scores

Documentation Qualityw: 20%

8.2

Has docs site (https://haystack.deepset.ai). Description: 65 chars. Stars signal: 26,849. Contributors: 518. Score: 8.2/10

Community Healthw: 20%

9.1

Stars: 26,849. Contributors: 518. Watchers: 164. Forks: 3,346. Issue ratio: 0.7%. Score: 9.1/10

Maintenance Velocityw: 15%

9.2

Last commit: 0d ago. Weekly commits: 8. Latest release: v3.4.1. Maturity bonus: 7.0y old. Score: 9.2/10

API Design & DXw: 20%

8.4

Stars/issues ratio: 143. Dynamic language: Python. Has documentation site. Permissive license: Apache-2.0. Popularity signal: 26,849 stars. Score: 8.4/10

Production Readinessw: 15%

8.7

Battle-tested: 26,849 stars. Peer review: 518 contributors. Versioned: v3.4.1. Licensed: Apache-2.0. Age: 7.0 years. Maintenance: last commit 0d ago. Score: 8.7/10

Ecosystem Integrationw: 10%

8.8

Fork interest: 3,346. Major ecosystem: Python. Integration-friendly: Apache-2.0. Adoption: 26,849 stars. Has web presence. Score: 8.8/10