The Pydantic Stack gives developers tools to build end-to-end type-safe applications, from local to prod, from AI to API. Ship robust apps faster, in Python, TypeScript, Rust and others.

Pydantic is a powerful data validation and settings management library for Python, engineered to enhance the robustness and reliability of your codebase.

Oct 24, 2025 · The Pydantic library in Python is used for data validation and data parsing using Python type hints. It ensures that data structures like classes, dictionaries or API inputs …

The name "Pydantic" is a portmanteau of "Py" and "pedantic." The "Py" part indicates that the library is associated with Python, and "pedantic" refers to the library's meticulous approach to …

Jun 25, 2025 · Pydantic is Python’s most popular data validation library that can turn type hints into runtime validation rules. Instead of writing dozens of if isinstance() checks and custom …

Jan 10, 2017 · Fast and extensible, Pydantic plays nicely with your linters/IDE/brain. Define how data should be in pure, canonical Python 3.9+; validate it with Pydantic. We've recently …

Feb 17, 2025 · Pydantic is a popular data validation and serialization library for Python. It enforces type hints at runtime, ensuring that your data conforms to the expected structure while offering …

Pydantic's core validation logic is implemented in a separate package (pydantic-core), where validation for most types is implemented in Rust. As a result, Pydantic is among the fastest …

Aug 20, 2025 · Enter Pydantic: the industry-standard library for structured data parsing and validation, powered by Python’s type hints. This guide covers everything from simple usage to …

Nov 30, 2023 · This article will help you take your first steps in using Pydantic. While prior knowledge of Pydantic is not required, a basic understanding of Python programming is …