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
683,970
With download data
10/18
Last sync
4h agoquarantined
AgnoStars42,358+5GitHub REST API · 4h agoLettaStars24,923+25GitHub REST API · 4h agoDeepEvalStars18,476+20GitHub REST API · 4h agoRagasStars15,862+6GitHub REST API · 4h agoPydantic AIStars20,220+20GitHub REST API · 4h agosmolagentsStars29,530+24GitHub REST API · 4h agoMastraStars28,378+24GitHub REST API · 4h agoVercel AI SDKStars27,001+25GitHub REST API · 4h agoGuardrailsStars7,456+3GitHub REST API · 4h agoInstructorStars13,951+4GitHub REST API · 4h agoDSPyStars38,388+28GitHub REST API · 4h agoHaystackStars26,618+7GitHub REST API · 4h ago
7 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
AgnoAgno42,358520,626pythonApache-2.0—7-day stars: 7 readings, 42.3K to 42.4K.Current4h ago
smolagentsHugging Face29,530132,630pythonApache-2.0—7-day stars: 7 readings, 29.4K to 29.5K.Current4h ago
Haystackdeepset26,618—pythonApache-2.027-day stars: 7 readings, 26.6K to 26.6K.Current4h ago
LettaLetta24,923—pythonApache-2.0—7-day stars: 7 readings, 24.8K to 24.9K.Current4h ago
DeepEvalConfident AI18,476—pythonApache-2.0—7-day stars: 7 readings, 18.4K to 18.5K.Current4h ago
RagasVibrant Labs15,862—pythonApache-2.0—7-day stars: 7 readings, 15.8K to 15.9K.Current4h ago
GuardrailsGuardrails AI7,456—pythonApache-2.0—7-day stars: 7 readings, 7.4K to 7.5K.Current4h ago

3 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.

indexable · canonical /frameworks?license=apache-2.0

Also tracked

Other datasets

Same engine, same provenance rules — every figure carries the source that reported it and when.

Smoke dataset

A fixture dataset that exercises the ingestion, validation and freshness machinery.

4 tracked

Language and embedding models

Language, embedding and speech models tracked across Hugging Face Hub download activity and OpenRouter context windows and pricing.

18 tracked

Local inference hardware

GPUs, accelerators and SoCs for running models locally, with VRAM, memory bandwidth, power draw and list price.

10 tracked