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PydanticAI

Free

Type-safe agent framework built on Pydantic for structured LLM outputs.

Open SourceAPIPython SDK

Tool Info

Categories
Frameworks · Agents
Official Website
ai.pydantic.dev
Repository
pydantic/pydantic-ai
Official Docs

Overview

PydanticAI brings Pydantic's validation to agent and LLM application development.

Agents return typed, validated results.

Supports multiple model providers.

Pricing

Free tier available
Free (open source)

Pros

  • Excellent type safety
  • Pydantic validation built-in
  • Clean Python API

Best For

Type-safe agentsStructured extractionPython-first workflows

When NOT to Use

  • Python only
  • Smaller ecosystem than LangChain

Related Tools

LangChain
Framework for building LLM-powered applications and workflows.
LlamaIndex
Data framework for connecting LLMs to private and structured data.
LangGraph
Graph-based framework for stateful, multi-agent LLM workflows.

Alternatives

LangGraph
Graph-based framework for stateful, multi-agent LLM workflows.

Often Compared With

LangGraph
Graph-based framework for stateful, multi-agent LLM workflows.

Compare With

Compare with LangGraph

Tags

#agents#python#structured-outputs

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