head to head · open source
fastapi vs ATAC
fastapi has 104,566 GitHub stars, 10,179 forks, 78 open issues and last shipped yesterday. ATAC has 3,747 stars, 144 forks, 20 open issues and last shipped 15 days ago. fastapi leads on adoption by 2,691% (104,566 vs 3,747 stars). fastapi is written in Python under MIT; ATAC is written in Rust under MIT. fastapi has attracted 10% as many forks as stars, ATAC 4%. fastapi was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (api), so they are genuine substitutes rather than adjacent tools.
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 | ATAC | |
|---|---|---|
| GitHub stars | ★ 105K | ★ 3.7K |
| License | MIT | MIT |
| Written in | Python | Rust |
| Last push | 2026-11-02 | 2026-10-19 |
| Forks | ⑂ 10K | ⑂ 144 |
| 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 ATAC if
- You want the ATAC feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Rust
- You evaluated both and ATAC 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 ATAC
ATAC ⚔📩 === Table Of Contents Description How to install Install with cargo Install with Homebrew Install with Scoop Install from Arch Install from Fedora copr Docker package Binary Compile by yourself Features Current TODO v1.0.0 TODO v2.0.0 Documentation Others Vim key bindings NeoVim integration Themes Technical precisions Tested on Dependencies Binary size Contributors Maintainers Packagers Star history License Description ATAC is A rguably a T erminal A PI C lient. It is based on well known clients such as Postman, Insomnia, or even Bruno, but inside your terminal without any specific graphical environment…
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Frequently asked questions
Is fastapi or ATAC more popular?
fastapi has 104,566 GitHub stars and ATAC has 3,747. fastapi has the larger community by that measure.
Are fastapi and ATAC free?
Both are open source. fastapi is licensed under MIT and ATAC under MIT. Neither carries a licence fee.
What is the difference between fastapi and ATAC?
fastapi is written in Python and ATAC in Rust. 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 ATAC?
Choose fastapi if you want the larger community (104,566 stars) or its MIT licence terms. Choose ATAC if its feature set, stack or MIT licence fits better. Both are self-hostable.