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FastAPIJune 20, 2026

FastAPI Frontend

Open Source
Infrastructure
Testing

Explore FastAPI Frontend

Visit the official website to learn more and get started

### TL;DR

FastAPI Frontend is a built-in capability introduced in FastAPI (v0.138.0) that allows developers to natively serve compiled static frontend applications directly from their Python backend using the app.frontend() method. It automatically falls back to serving your index.html (or a custom 404.html page) for unrecognized browser paths, allowing your frontend framework to handle client-side routing seamlessly. Designed with zero API interference, the framework always checks your standard backend API routes first, ensuring your core server logic remains completely unaffected by the static files.

Key Insights & Metrics

Pricing
Free
Cost structure
Version
0.138.0
Current release version
Hardware
FastAPI only requires a system capable of running Python
Compute requirements
Category
Open Source
Licensing model
Region
Germany
Primary region

Key Features

  • Serving frontend content with FastAPI
  • Client-side routing integration
  • Managing static files in FastAPI applications
  • Smart Auto-Fallback & Custom 404 Pages

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