OpenAI Agents SDK (JS) vs PydanticAI
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.
OpenAI Agents SDK (JS) leads on trust — 91.1/100 (Grade A) vs 89.3/100 (Grade A), a 1.8-point gap. Note: OpenAI Agents SDK (JS)'s evidence coverage is thinner (coverage B vs A) — its score rests on fewer independent signal types. Full breakdown below.
| Signal | OpenAI Agents SDK (JS)openai/openai-agents-js | PydanticAIpydantic/pydantic-ai |
|---|---|---|
| HVTrust score | 91.1 | 89.3 |
| Evidence grade | A | A |
| Coverage grade | B | A |
| Overall rank | #11 | #23 |
| Rank in Agent Frameworks | #5 | #7 |
| GitHub stars | 3.8k | 20.0k |
| Last updated | today | today |
| Build provenance | Yes | Yes |
| OSSF Scorecard | 6.8 / 10 | 6.4 / 10 |
| License | MIT | MIT |
| Downloads | 1.3M/wk | 1.2M/wk |
| Trust dimensions (points earned) | ||
| Safety / integrity / 25 | 20.5 | 20.5 |
| Identity & provenance / 18 | 18.0 | 18.0 |
| Transparency / 17 | 14.3 | 13.9 |
| Maintenance / 20 | 20.0 | 20.0 |
| Adoption / 20 | 16.7 | 18.4 |
| Runtime capability surface (full matrix) | ||
| MCP server | Implemented | Declared |
| External providers | 1 — OpenAI | 8 — Amazon Bedrock, Anthropic, Cohere, … |
| Requires API keys | Yes | No |
| Plugin surface | extensions | — |
| Provenance drift | Match | Match |
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OpenAI Agents SDK (JS) profile
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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 v4.3 →