head to head · open source
fastapi vs smocker
fastapi has 102,402 GitHub stars, 9,903 forks, 78 open issues and last shipped 4 days ago. smocker has 1,284 stars, 71 forks, 14 open issues and last shipped 4 days ago. fastapi leads on adoption by 7,875% (102,402 vs 1,284 stars). fastapi is written in Python under MIT; smocker is written in TypeScript under MIT. fastapi has attracted 10% as many forks as stars, smocker 6%. 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 | smocker | |
|---|---|---|
| GitHub stars | ★ 102K | ★ 1.3K |
| License | MIT | MIT |
| Written in | Python | TypeScript |
| Last push | 2026-09-14 | 2026-09-14 |
| Forks | ⑂ 9.9K | ⑂ 71 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick fastapi if
- You weight community size — 102K stars and counting
- You want the MIT license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick smocker if
- You want the smocker feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and smocker fits your workflow better
About fastapi
FastAPI is an MIT licensed, high performance Python web framework for building APIs with standard Python type hints, aimed at Python developers and teams that need production ready HTTP services with automatic OpenAPI documentation.
read the full fastapi overview →
About smocker
Smocker is an open source HTTP mock server and proxy for API development and testing. It lives in the developer tools ecosystem, where teams simulate third party services, stub routes, and inspect interactions without building a full backend. The project is MIT licensed, written in TypeScript, and distributed as a Docker image or manual deployment archive.
read the full smocker overview →
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Frequently asked questions
Is fastapi or smocker more popular?
fastapi has 102,402 GitHub stars and smocker has 1,284. fastapi has the larger community by that measure.
Are fastapi and smocker free?
Both are open source. fastapi is licensed under MIT and smocker under MIT. Neither carries a licence fee.
What is the difference between fastapi and smocker?
fastapi is written in Python and smocker in TypeScript. 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 smocker?
Choose fastapi if you want the larger community (102,402 stars) or its MIT licence terms. Choose smocker if its feature set, stack or MIT licence fits better. Both are self-hostable.