head to head · open source
fastapi vs pythagora
fastapi has 104,566 GitHub stars, 10,179 forks, 78 open issues and last shipped yesterday. pythagora has 1,821 stars, 113 forks, 24 open issues and last shipped 5 months ago. fastapi leads on adoption by 5,642% (104,566 vs 1,821 stars). fastapi is written in Python under MIT; pythagora is written in JavaScript under Apache-2.0. fastapi has attracted 10% as many forks as stars, pythagora 6%. fastapi was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| fastapi | pythagora | |
|---|---|---|
| GitHub stars | ★ 105K | ★ 1.8K |
| License | MIT | Apache-2.0 |
| Written in | Python | JavaScript |
| Last push | 2026-11-02 | 2026-06-16 |
| Forks | ⑂ 10K | ⑂ 113 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick fastapi if
- You weight community size — 105K stars and counting
- You want the MIT license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick pythagora if
- You want the pythagora feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches JavaScript
- You evaluated both and pythagora fits your workflow better
About fastapi
FastAPI framework, high performance, easy to learn, fast to code, ready for production Documentation : Source Code : FastAPI is a modern, fast (high performance), web framework for building APIs with Python based on standard Python type hints. The key features are: Fast : Very high performance, on par with NodeJS and Go (thanks to Starlette and Pydantic). One of the fastest Python frameworks available. Fast to code : Increase the speed to develop features by about 200% to 300%. Fewer bugs : Reduce about 40% of human (developer) induced errors. Intuitive : Great editor support. Completion everywhere. Less time…
read the full fastapi overview →
About pythagora
This repo is deprecated we're working on GPT Pilot Pythagora is on a mission to make automated tests 🤖 fully autonomous 🤖 Just run one command and watch the tests being created with GPT 4 The following details are for generating unit tests. To view the docs on how to generate integration tests , click here. Visual Studio Code Extension If you want to try out Pythagora using Visual Studio Code extension you can download it here . 🏃💨️ Quickstart To install Pythagora run: Then, add your API key and you're ready to get tests generated. After that, just run the following command from the root directory of your…
read the full pythagora overview →
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Frequently asked questions
Is fastapi or pythagora more popular?
fastapi has 104,566 GitHub stars and pythagora has 1,821. fastapi has the larger community by that measure.
Are fastapi and pythagora free?
Both are open source. fastapi is licensed under MIT and pythagora under Apache-2.0. Neither carries a licence fee.
What is the difference between fastapi and pythagora?
fastapi is written in Python and pythagora in JavaScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, fastapi or pythagora?
Choose fastapi if you want the larger community (104,566 stars) or its MIT licence terms. Choose pythagora if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.