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Pydantic AI
Type-safe Python agent framework — FastAPI vibe, Pydantic schemas, built-in retry.
3 hours1 resources
Pydantic team's agent framework. Philosophy: "FastAPI-quality DX for agents".
Pros:
- All tool input/output via Pydantic schemas (compile-time validation)
- Auto-retry on validation failure
- Dependency injection (DB connections, API clients, etc.)
- Type-safe streaming
- Vendor-agnostic (Claude, GPT, Gemini, Groq, local)
For Python agents in a mixed TS/Python ecosystem, the modern alternative. Ideal for those avoiding LangChain's complexity.