FastAPI

A modern, fast web framework for building APIs with Python

5.0•33 reviews•

176 followers

A modern, fast web framework for building APIs with Python

5.0•33 reviews•

176 followers

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Databases and backend frameworks

A high performance, easy to learn, fast to code, and ready for production framework

FastAPI reviews

The community submitted 33 reviews to tell us what they like about FastAPI, what FastAPI can do better, and more.

5.0

Based on 33 reviews

Review FastAPI?

FastAPI is highly praised for its speed, performance, and ease of use, making it a preferred choice for backend development. Makers of Writesonic and Polar appreciate its ability to streamline development by reducing boilerplate code and automatically generating OpenAPI schemas. Reflex makers highlight its effectiveness in handling server-side operations. Users commend its automatic interactive API documentation and asynchronous capabilities, which enhance productivity and maintain a clean codebase. Overall, FastAPI is celebrated for its modern approach to building APIs with Python.

+30

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Pros

fast performance (3)

automatic OpenAPI schema (2)

ease of use (2)

fast development (2)

high performance (2)

modern framework (2)

Python-based (2)

Pros

Cons

Reviews

Founder Reviews only

Helpful

John Chen

used FastAPI to build

Atlas.co

(940 points)

Allows us to build fast APIs with great performance while maintaining high dev freedom

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1yr ago

Dimitris Kargatzis

used FastAPI to build

Warestack

(391 points)

FastAPI's async-first architecture with Pydantic validation and automatic OpenAPI generation helped a lot without implementing things manually. We're handling thousands of concurrent requests with really good response times. The dependency injection makes our service layer clean, while the built-in middleware stack handles CORS, authentication, and request context out of the box. Also, the automatic type checking and validation have caught bugs before they hit production.

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10d ago

Aryan Randeriya

used FastAPI to build

GAIA v0

(137 points)

Insanely sped up our execution speed for developing the backend

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20d ago

Khaled Shadid

used FastAPI to build

NeuralAgent

(73 points)

A great and fast python framework for building APIs.

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4mo ago

peti_poua

used FastAPI to build Zenkan

Zenkan

(96 points)

Switched from Flask to FastAPI because I found myself mainly using API endpoints with my Svelte SPA, also FastAPI's docs were way better, clearer and more didactic, than Flask's, especially for the beginner that i was. Felt like FastAPI's docs were actually treating me like a human, and I thank them for that.

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5mo ago

Manu Hortet

used FastAPI to build

Producta

(387 points)

You have to love the simplicity. The sweetest web framework these days.

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6mo ago

Samanyou Garg

used FastAPI to build SEO AI Agent

Writesonic

(824 points)

Very good backend framework.

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6mo ago

Liam

used FastAPI to build

Swipeart

(141 points)

To connect MySQL to the app

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7mo ago

Aman AI

used FastAPI to build

Oneconscious.ai

(79 points)

Blazingly fast and effective

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7mo ago

Jared Watson

used FastAPI to build Cure AI

Cure AI

(129 points)

FastAPI stood out over Flask with its built-in features like automatic documentation and async support. It made developing Cure AI’s backend faster and more streamlined while keeping the codebase clean and easy to manage.

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8mo ago

FastAPI

A modern, fast web framework for building APIs with Python

A modern, fast web framework for building APIs with Python

FastAPI reviews

The community submitted 33 reviews to tell us what they like about FastAPI, what FastAPI can do better, and more.

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