PydanticAI

agent-sdkNo score yet

AI Agent Framework, the Pydantic way

GitHub ↗PyPI ↗

Stars

17,672

Δ stars 7d

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Δ stars 30d

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Forks

2,202

Contributors

464

npm DL / wk

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PyPI DL / wk

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Language

Python

Last push

2026-06-10

About PydanticAI

FastAPI revolutionized web development by offering an innovative and ergonomic design, built on the foundation of Pydantic Validation and modern Python features like type hints. Yet despite virtually every Python agent framework and LLM library using Pydantic Validation, when we began to use LLMs in Pydantic Logfire, we couldn't find anything that gave us the same feeling. We built Pydantic AI with one simple aim: to bring that FastAPI feeling to GenAI app and agent development.

Read the full README on GitHub →

Install

pip install pydantic-ai

Newly tracked — a growth score appears after the first full scoring week. Signals are deliberately suppressed during cold start to avoid false positives.

PydanticAI alternatives

Projects in the same category, closest in size — picked by data, not opinion.

Vercel AI SDKNo score yet24,770 ★

OpenAI Agents SDKNo score yet27,053 ★

OpenAI Node SDKNo score yet10,964 ★

OpenAI Python SDKNo score yet30,955 ★

See all agent-sdk projects ranked by growth →

Frequently asked questions

Is PydanticAI still maintained?: Yes — actively maintained. The last push was on 2026-06-10, with 464 contributors.
What are the best PydanticAI alternatives?: Closest by category and size in our data: Vercel AI SDK, OpenAI Agents SDK, OpenAI Node SDK — full list with live signals above.

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Tracked since 2026-06-10 · data as of 2026-06-10 · 625 open issues · 267 releases