Pydantic AI

Open source · MIT

Pydantic AI

by Pydantic

A Python library for building agents with typed inputs and outputs, across every model provider.

20.4k stars on GitHub, Oct 2026

Why it's useful

Write agents in plain Python and get back checked, structured answers instead of loose text, with the same code working on Claude, GPT, Gemini or a local model.

What it needs

Python knowledge; a model API key or local model

The details

Price
Free
Licence
Open source (MIT)
Runs on
Command line
Made by
Pydantic
Category
Agents & MCPCoding
Tags
agent frameworkpythonstructured output

Image: Pydantic. Pydantic AI belongs to Pydantic; we just think it's worth knowing about.

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