Web Framework · Founded by Sebastián Ramírez in 2018

FastAPI

Build fast APIs with Python 3.8+ effortlessly.

Cost

Free

Rating

★ People love it

Time to value

Quick Setup (< 1 hour)

You can use FastAPI to quickly create high-performance APIs with Python 3.8 or newer. It leverages type hints for data validation and serialization, and automatically generates interactive API documentation. This makes it ideal for developing web applications, backend services, or integrating machine learning models. Notable features include asynchronous support for handling numerous connections efficiently and seamless integration with tools like Pydantic and Starlette.

What FastAPI does

Developing RESTful APIsValidating and serializing data using type hintsGenerating interactive API documentation automaticallyHandling asynchronous requests for improved performanceIntegrating with data validation libraries like PydanticBuilding backend services for web applications

Frequently asked

Pydantic, Starlette, Uvicorn, SQLAlchemy, GraphQL, Docker, Kubernetes, Nginx, Gunicorn, Celery

Want a tailored answer?

See whether FastAPI fits your stack.

Techbible weighs FastAPI against what you already pay for, your team shape, and the work that's actually happening. Free to start.

More in Web Framework

All tools →

Flask

A lightweight Python framework for building web applications.

Astro

JavaScript framework for fast, content-first websites with minimal client-side JavaScript.