Directory

Agent engineering frameworks

This directory tracks 18 open-source agent-engineering frameworks across GitHub activity, package downloads and release cadence. Every figure carries the source that reported it and the moment it was observed. Values that fail validation are withheld rather than shown, and the last verified snapshot stays on the page until a clean sync replaces it.
Frameworks
18
Stars tracked
682,608
With download data
10/18
Last sync
1h agoquarantined
AgnoStars42,325+14GitHub REST API · 1h agoLettaStars24,864+13GitHub REST API · 1h agoDeepEvalStars18,419+16GitHub REST API · 1h agoRagasStars15,834+5GitHub REST API · 1h agoPydantic AIStars20,133+9GitHub REST API · 1h agosmolagentsStars29,463+9GitHub REST API · 1h agoMastraStars28,295+25GitHub REST API · 1h agoVercel AI SDKStars26,922+20GitHub REST API · 1h agoGuardrailsStars7,443+1GitHub REST API · 1h agoInstructorStars13,939+4GitHub REST API · 1h agoDSPyStars38,243+25GitHub REST API · 1h agoHaystackStars26,584+4GitHub REST API · 1h ago
2 agent engineering frameworks, sorted by stars. Each row shows the last time the ranked figure was observed.
Select to compareFrameworkStarsDownloads/wkLast commitLanguageLicenceOpen roles7-day starsChecked
Pydantic AIPydantic20,1333,076,771pythonMIT37-day stars: 7 readings, 20.0K to 20.1K.Current1h ago
Instructor567 Labs13,93913,080,962pythonMIT7-day stars: 7 readings, 13.9K to 13.9K.Current1h ago

2 of 3 frameworks selected

Sources: GitHub REST API, npm registry downloads, PyPI registry metadata, pypistats.org downloads. Every value carries the moment it was observed; figures that failed validation are withheld rather than shown. SLA: current within 48h, ageing to 168h, stale beyond 336h.

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