FastAPI

What FastAPI is

FastAPI is a free, open-source backend framework for Python. It is delivered on the web and is intended for self-hosted deployment, so developers run it in their own environment. Built-in authentication is included, making it suitable for backend projects that need authentication capabilities in the framework. FastAPI does not include an ORM, so database mapping is outside the listed package. Its scope is specifically backend development, with Python as the primary language. The open-source license and free plan make it available without a listed purchase requirement. Developers selecting a Python backend framework can consider its self-hosted deployment model, included authentication, and lack of an included ORM when matching it to a project’s stack. The available facts do not describe other framework types or deployment targets.