A hands-on guide to building production-ready AI agents in Python using Pydantic AI. Covers defining Pydantic models for type-safe structured outputs, registering Python functions as agent tools with docstring-driven dispatch, injecting runtime dependencies (database connections, API clients) via a typed RunContext, and using built-in capabilities like web search and extended thinking. Includes code examples for each concept and a GitHub Colab notebook for reference.
Table of contents
IntroductionWhy Pydantic AI?PrerequisitesInstalling Pydantic AIBuilding Your First Agent with Pydantic AIGetting Structured, Validated OutputsGiving Your Agent ToolsDependency Injection in PracticeUsing Built-in Capabilities in Pydantic AISummary and Next StepsSort: