Compare frameworks
Mastra vs Haystack
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 | Mastra | Haystack |
|---|---|---|
| Stars | 28,295 (highest of the compared values)Synced from sourceCurrentjust now | 26,584Synced from sourceCurrentjust now |
| downloads | 1,161,907Synced from sourceCurrentjust now | — |
| Last commit | 2026-09-24Synced from sourceCurrentjust now | 2026-09-23Synced from sourceCurrentjust now |
| Language | typescriptSeeded, unreviewedwritten 1mo ago | pythonSeeded, unreviewedwritten 1mo ago |
| Licence | — | Apache-2.0Synced from sourceCurrentjust now |
| Archived | noSynced from sourceCurrentjust now | noSynced from sourceCurrentjust now |
| Category | orchestrationSeeded, unreviewedwritten 1mo ago | ragSeeded, unreviewedwritten 1mo ago |
| Contributors | 678Synced from sourceCurrentjust now | 475Synced from sourceCurrentjust now |
| Forks | 2845Synced from sourceCurrentjust now | 3176Synced from sourceCurrentjust now |
| Maintainer | MastraSeeded, unreviewedwritten 1mo ago | deepsetSeeded, unreviewedwritten 1mo ago |
| npm downloads, monthly | 5528725Synced from sourceCurrentjust now | — |
| npm downloads, weekly | 1161907Synced from sourceCurrentjust now | — |
| npm package | @mastra/coreSynced from sourceCurrentjust now | — |
| npm window ends | 2026-09-21Synced from sourceCurrentjust now | — |
| Open issues | 447Synced from sourceCurrentjust now | 168Synced from sourceCurrentjust now |
| PyPI package | — | haystack-aiSynced from sourceCurrentjust now |
| PyPI released | — | 2026-09-03T09:27:43.312258ZSynced from sourceCurrentjust now |
| Requires Python | — | >=3.10Synced from sourceCurrentjust now |
| PyPI version | — | 3.1.1Synced from sourceCurrentjust now |
| Repository | https://github.com/mastra-ai/mastraSynced from sourceCurrentjust now | https://github.com/deepset-ai/haystackSynced from sourceCurrentjust now |
Sources: GitHub REST API, npm registry downloads, PyPI registry metadata, pypistats.org downloads. Most recent observation just now. 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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