Registry › Compare › OpenAI Agents SDK (JS) vs PydanticAI

OpenAI Agents SDK (JS) vs PydanticAI

Both are Grade A and 4.4 points apart, so choose on what you weigh most. OpenAI Agents SDK (JS) leads on supply-chain integrity and transparency; PydanticAI leads on maintenance and adoption, and rests on broader evidence. Note: OpenAI Agents SDK (JS)'s evidence coverage is thinner (coverage B vs A) — its score rests on fewer independent signal types.

A OpenAI Agents SDK (JS) 93.0

A lightweight, powerful framework for multi-agent workflows and voice agents

openai/openai-agents-js · #6 overall · #4 Agent Frameworks · coverage B (3/5)

Choose OpenAI Agents SDK (JS) if supply-chain integrity and transparency matter most.

+3.1Safety / Integrity: OSSF Scorecard 8.5 against 6.0
+2.1Transparency: OSSF Scorecard 8.5 against 6.0

A PydanticAI 88.6

How Python does AI. Agents, realtime voice, image generation, embeddings. Every model, every interface, typed end to end.

pydantic/pydantic-ai · #52 overall · #8 Agent Frameworks · coverage A (4/5)

Choose PydanticAI if maintenance and adoption matter most.

+1.7Maintenance: last push today, against 1d ago
+1.5Adoption: 21k GitHub stars against 4k
A vs BEvidence coverage: 4 of 5 independent signal types, against 3

Where they differ

23.1

Safety / IntegrityOpenAI Agents SDK (JS) +3.1

20.0

15.7

TransparencyOpenAI Agents SDK (JS) +2.1

13.6

18.3

MaintenancePydanticAI +1.7

20.0

17.2

AdoptionPydanticAI +1.5

18.7

+0.7

Runtime calibrationOpenAI Agents SDK (JS) +2.4

-1.7

1 dimension identical: Identity 18.0 · Full evidence table

An independent, evidence-based trust comparison of OpenAI Agents SDK (JS) and PydanticAI, two Agent Frameworks projects in the HVTracker registry. Scores come from public, checkable signals — supply-chain provenance, OSSF Scorecard, maintenance, and adoption — not popularity.

Full evidence

Signal	OpenAI Agents SDK (JS)openai/openai-agents-js	PydanticAIpydantic/pydantic-ai
HVTrust score	93.0	88.6
Evidence grade	A	A
Coverage grade	B	A
Overall rank	#6	#52
Rank in Agent Frameworks	#4	#8
GitHub stars	4.0k	21.0k
Last updated	1d ago	today
Build provenance	Yes	Yes
OSSF Scorecard	8.5 / 10	6.0 / 10
License	MIT	MIT
Downloads	2.5M/wk	1.7M/wk
Trust dimensions (points earned)
Safety / integrity / 25	23.1	20.0
Identity & provenance / 18	18.0	18.0
Transparency / 17	15.7	13.6
Maintenance / 20	18.3	20.0
Adoption / 20	17.2	18.7
Runtime capability surface (full matrix)
MCP server	Implemented	Declared
External providers	1 — OpenAI	9 — Amazon Bedrock, Anthropic, Cohere, …
Requires API keys	Yes	No
Plugin surface	extensions	plugins
Provenance drift	Match	Match

Open in the live compare tool → OpenAI Agents SDK (JS) profile PydanticAI profile More Agent Frameworks →

How to read this: HVTrust (0–100) weighs supply-chain signals (provenance, OSSF Scorecard, signed commits, open license) alongside real-world adoption, scaled by an evidence-confidence factor. Grade bands: A ≥ 80, B ≥ 65, C ≥ 50, D < 50. Signals refresh daily. Full methodology v4.4 →