FastAPI
In plain terms
A modern, high-performance Python framework for APIs.
Going deeper
FastAPI builds APIs fast with automatic validation and docs from Python type hints, and strong async performance. It's become a favorite for Python APIs.
Under the hood
Type-hint-driven validation (Pydantic) plus async support give speed and great developer experience.
Examples
ML model serving, async APIs, microservices, auto-generated docs.
Think of it like...
Like a smart form that validates and documents itself as you fill it in.