voice-ai

pydantic-ai: Build Robust AI Agents with Pydantic Simplicity

Leverage pydantic-ai’s Python‑first framework to craft reliable, type‑safe LLM agents fast. Ideal for founders building AI‑driven products. 20k+ GitHub stars.

From the repo · “How Python does AI. Agents, realtime voice, image generation, embeddings. Every model, every interface, typed end to end.”

20,775 stars+153★ this week2,987 forksPythonGuide quality 8/10 · reviewed Oct 5Install verified Sep 21Updated 10/22/2026100% free · open source
What it does

Pydantic-ai provides a framework for building AI agents using Pydantic, allowing founders to create structured and scalable AI models

When to use it
  • •When building a custom AI model that requires strict data validation and typing
  • •When integrating AI capabilities into an existing Pydantic-based application
  • •When needing to create a scalable and maintainable AI agent framework
Ready-to-paste prompt
from pydantic_ai import agent; @agent(config={'model': 'resnet50', 'task': 'image_classification'}) class MyAgent(pydantic.BaseModel): pass
Heads up: Ensure you have the latest version of Pydantic installed, as pydantic-ai relies on Pydantic's latest features, and older versions may cause compatibility issues
Saves to your device
Use with Claude
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✅ Light setup✓ Install verified 9/21/2026

Installs with a command or two; your AI agent can do it for you.

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Claude Code
mkdir -p ~/.claude/skills/pydantic-ai && curl -fsSL https://workflowstacks.com/api/skills/pydantic-ai/claude-skill -o ~/.claude/skills/pydantic-ai/SKILL.md
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Connect the whole catalog (MCP)
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How pydantic-ai: Build Robust AI Agents with Pydantic Simplicity works
Codeflow
Free to inspect

Pydantic-ai: Build Robust AI Agents with Pydantic Simplicity is a very large Python project (~178k lines across 449 code files, plus 303 test files). Setup is light: installs like a normal app. Reading the code is optional. Last commit this month, MIT license, has a test suite.

Size
Very large codebase
~178k lines · 449 code files · days to read — use, don't read
Setup
One-command install
Installs like a normal app. Reading the code is optional.
Runs on
Python
No API keys detected
Python 100%
Where to start reading
  1. 1
    README.md
    Start here — what it does and how to install it
  2. 2
    AGENTS.md
    The instructions the AI actually follows
  3. 3
    pyproject.toml
    Dependencies and the commands it exposes
  4. 4
    examples/README.md
    A worked example — copy this to get going
What's in each folder
docs/Documentation252 files
examples/Examples you can copy62 files
pydantic_ai_slim/Folder337 files
pydantic_evals/Folder33 files
pydantic_graph/Folder18 files
scripts/Helper scripts9 files
clai/Folder6 files
agent_docs/Folder5 files
READMEHas testsDocumentedCI checksExamples includedMIT licenseUpdated this month
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Details
Creator
pydantic
Language
Python
Category
voice-ai
Published
6/21/2024

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