Library / SDK
Agents & OrchestrationGuardrails & Structure
Pydantic AI
1Type-safe 2agents 3with 4structured, 5validated 6outputs.
the six Ws · specification
W1
Who
Built by the team behind Pydantic.
W2
What
Define agents whose outputs validate against models.
W3
Where
A Python library on your infra.
W4
When
When you need reliable, typed agent responses.
W5
Why
Brings Pydantic’s guarantees to LLM outputs.
W6
With
Any LLM provider and your Pydantic models.
alternatives
works with