API

FastAPI is itself a library for building APIs, not a service that exposes one. There is no permanent API surface to document under "endpoints." The runtime endpoints a FastAPI instance hosts are user-defined plus a small set of framework-owned routes.

This section documents the framework-owned routes — the ones the FastAPI constructor adds — and the public Python API user code consumes.

Sub-pages

• Auto-served routes — /openapi.json, /docs, /redoc, /docs/oauth2-redirect.
• Public Python API — what from fastapi import ... exposes and which sub-modules are stable.