Websites Using FastAPI

FastAPI is a modern, high-performance Python web framework for building APIs with automatic interactive documentation and data validation. It leverages Python type hints for automatic request parsing, response serialization, and OpenAPI schema generation.

Categories: Web framework, Programming language

Official website: https://fastapi.tiangolo.com

51 websites using FastAPI

FastAPI is ranked #46 of 144 in Web framework by website adoption.

Web framework alternatives ranked by popularity

Next.js — 22,800 websites
Microsoft ASP.NET — 14,610 websites
Dash — 11,678 websites
Ruby on Rails — 5,957 websites
Nuxt.js — 5,333 websites
Laravel — 3,580 websites
Spring Boot — 3,198 websites
Grails — 3,162 websites
Express — 3,079 websites
Panel — 2,827 websites

Technologies commonly used with FastAPI

Python — 100% co-occurrence
Open Graph — 67% co-occurrence
Uvicorn — 49% co-occurrence
Cloudflare — 45% co-occurrence
Schema.org — 41% co-occurrence
HTTP/3 — 41% co-occurrence
HSTS — 39% co-occurrence
Node.js — 35% co-occurrence

How WhatStack detects FastAPI

WhatStack detects FastAPI by analyzing HTTP headers, HTML source code, JavaScript globals, meta tags, cookies, DNS records, and ads.txt entries using signature-based pattern matching across 10 different analyzers.

Frequently Asked Questions

What is FastAPI?: FastAPI is a modern, high-performance Python web framework for building APIs with automatic interactive documentation and data validation. It leverages Python type hints for automatic request parsing, response serialization, and OpenAPI schema generation.
How many websites use FastAPI?: WhatStack has detected FastAPI on 51 websites in our database.
How do you detect FastAPI?: We analyze HTTP headers, HTML source, JavaScript globals, meta tags, cookies, DNS records, and ads.txt entries to identify FastAPI with high accuracy using signature-based pattern matching.