head to head · open source
one-api vs kubb
one-api has 36,940 GitHub stars, 6,867 forks, 1,036 open issues and last shipped 8 months ago. kubb has 1,802 stars, 147 forks, 6 open issues and last shipped yesterday. one-api leads on adoption by 1,950% (36,940 vs 1,802 stars). one-api is written in JavaScript under MIT; kubb is written in TypeScript under MIT. one-api has attracted 19% as many forks as stars, kubb 8%. kubb was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (claude), 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 | kubb | |
|---|---|---|
| GitHub stars | ★ 37K | ★ 1.8K |
| License | MIT | MIT |
| Written in | JavaScript | TypeScript |
| Last push | 2026-01-09 | 2026-09-18 |
| Forks | ⑂ 6.9K | ⑂ 147 |
| 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 kubb if
- You want the kubb feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and kubb 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 kubb
Kubb is an MIT licensed TypeScript meta framework for code generation that turns an OpenAPI schema into type safe TypeScript types, HTTP clients, data fetching hooks, validators, and mocks for front end and full stack developers.
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Frequently asked questions
Is one-api or kubb more popular?
one-api has 36,940 GitHub stars and kubb has 1,802. one-api has the larger community by that measure.
Are one-api and kubb free?
Both are open source. one-api is licensed under MIT and kubb under MIT. Neither carries a licence fee.
What is the difference between one-api and kubb?
one-api is written in JavaScript and kubb 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 kubb?
Choose one-api if you want the larger community (36,940 stars) or its MIT licence terms. Choose kubb if its feature set, stack or MIT licence fits better. Both are self-hostable.