FastAPI Quickstart in 2026

What is FastAPI? As the name suggests, FastAPI is a modern Python framework designed for building RESTful APIs with high performance and minimal boilerplate. In 2026, it has become the industry standard because it’s exceptionally fast, reliable, and includes powerful out of the box features — such as automatic interactive documentation and native support for asynchronous programming. How to install? These commands install FastAPI along with Uvicorn, a lightning-fast server used to run your appli