PydanticAI

Python framework for building typed ai agents with tools, structured outputs, and model integrations.

Overview

PydanticAI is a Python framework for building ai agents with typed dependencies, tools, and structured outputs. Developers can connect agents to many model providers, expose functions as tools, and validate returned data with Pydantic models. The framework also covers streaming, durable execution, instrumentation, voice interfaces, and agent applications that run in terminals or web frontends.

Key features

Typed agent dependencies and outputs
Function tools with validated arguments
Model-provider integrations
Streaming responses
Durable execution integrations
OpenTelemetry instrumentation
Voice and web interfaces

Use cases

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Last updated 2026-09-16