Compare frameworks
Haystack vs Mastra
Every figure below carries the source that reported it and the moment it was observed. Values that failed validation are withheld rather than shown, and a dash means no source we track carries that field for that framework.
| Field | Haystack | Mastra |
|---|---|---|
| Stars | 26,618Synced from sourceCurrent2h ago | 28,378 (highest of the compared values)Synced from sourceCurrent2h ago |
| downloads | — | 1,980,114Synced from sourceCurrent2h ago |
| Last commit | 2026-09-25Synced from sourceCurrent2h ago | 2026-09-28Synced from sourceCurrent2h ago |
| Language | pythonSeeded, unreviewedwritten 1mo ago | typescriptSeeded, unreviewedwritten 1mo ago |
| Licence | Apache-2.0Synced from sourceCurrent2h ago | — |
| Archived | noSynced from sourceCurrent2h ago | noSynced from sourceCurrent2h ago |
| Category | ragSeeded, unreviewedwritten 1mo ago | orchestrationSeeded, unreviewedwritten 1mo ago |
| Contributors | 479Synced from sourceCurrent2h ago | 682Synced from sourceCurrent2h ago |
| Forks | 3198Synced from sourceCurrent2h ago | 2871Synced from sourceCurrent2h ago |
| Maintainer | deepsetSeeded, unreviewedwritten 1mo ago | MastraSeeded, unreviewedwritten 1mo ago |
| npm downloads, monthly | — | 5868462Synced from sourceCurrent2h ago |
| npm downloads, weekly | — | 1980114Synced from sourceCurrent2h ago |
| npm package | — | @mastra/coreSynced from sourceCurrent2h ago |
| npm window ends | — | 2026-09-26Synced from sourceCurrent2h ago |
| Open issues | 183Synced from sourceCurrent2h ago | 477Synced from sourceCurrent2h ago |
| PyPI package | haystack-aiSynced from sourceCurrent2h ago | — |
| PyPI released | 2026-09-24T10:49:23.742948ZSynced from sourceCurrent2h ago | — |
| Requires Python | >=3.10Synced from sourceCurrent2h ago | — |
| PyPI version | 3.2.0Synced from sourceCurrent2h ago | — |
| Repository | https://github.com/deepset-ai/haystackSynced from sourceCurrent2h ago | https://github.com/mastra-ai/mastraSynced from sourceCurrent2h ago |
Sources: GitHub REST API, npm registry downloads, PyPI registry metadata, pypistats.org downloads. Most recent observation 2h ago. Where a row is marked, ▲ is the highest of the values shown and ▼ the lowest — arithmetic on the figures above, not a ranking or a recommendation. Rows where neither extreme is meaningful are left unmarked rather than given a direction they do not have.
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