head to head · open source
one-api vs smocker
one-api has 36,932 GitHub stars, 6,867 forks, 1,036 open issues and last shipped 8 months ago. smocker has 1,284 stars, 71 forks, 14 open issues and last shipped 4 days ago. one-api leads on adoption by 2,776% (36,932 vs 1,284 stars). one-api is written in JavaScript under MIT; smocker is written in TypeScript under MIT. one-api has attracted 19% as many forks as stars, smocker 6%. smocker was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (api, proxy), 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
| one-api | smocker | |
|---|---|---|
| GitHub stars | ★ 37K | ★ 1.3K |
| License | MIT | MIT |
| Written in | JavaScript | TypeScript |
| Last push | 2026-01-09 | 2026-09-14 |
| Forks | ⑂ 6.9K | ⑂ 71 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick one-api if
- You weight community size — 37K stars and counting
- You want the MIT license terms
- Your stack matches JavaScript
- 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 one-api
One API is a self hosted LLM API management and key redistribution system that exposes many model providers through the standard OpenAI API format, aimed at developers, teams and operators who want a single endpoint, a single key model and a single quota surface across providers.
read the full one-api 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 one-api or smocker more popular?
one-api has 36,932 GitHub stars and smocker has 1,284. one-api has the larger community by that measure.
Are one-api and smocker free?
Both are open source. one-api is licensed under MIT and smocker under MIT. Neither carries a licence fee.
What is the difference between one-api and smocker?
one-api is written in JavaScript 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, one-api or smocker?
Choose one-api if you want the larger community (36,932 stars) or its MIT licence terms. Choose smocker if its feature set, stack or MIT licence fits better. Both are self-hostable.