head to head · open source
one-api vs apitest
one-api has 36,932 GitHub stars, 6,867 forks, 1,036 open issues and last shipped 8 months ago. apitest has 846 stars, 58 forks, 0 open issues and last shipped 15 days ago. one-api leads on adoption by 4,265% (36,932 vs 846 stars). one-api is written in JavaScript under MIT; apitest is written in Go under MIT. one-api has attracted 19% as many forks as stars, apitest 7%. apitest 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
| one-api | apitest | |
|---|---|---|
| GitHub stars | ★ 37K | ★ 846 |
| License | MIT | MIT |
| Written in | JavaScript | Go |
| Last push | 2026-01-09 | 2026-09-03 |
| Forks | ⑂ 6.9K | ⑂ 58 |
| 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 apitest if
- You want the apitest feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Go
- You evaluated both and apitest 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 apitest
apitest is a behavioural testing library for Go HTTP services, published under the MIT licence and maintained at github.com/steinfletcher/apitest. It lives in the Go ecosystem and has been in development for eight years, accumulating 846 stars and 58 forks, with an API the README describes as stable. Tests are written the way a client uses an API: a request is built, sent to a handler, and the response is asserted against expectations. The README states that in behavioural tests the internal structure of the application is not known by the tests; data is input to the system and the outputs must meet certain condi…
read the full apitest overview →
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Frequently asked questions
Is one-api or apitest more popular?
one-api has 36,932 GitHub stars and apitest has 846. one-api has the larger community by that measure.
Are one-api and apitest free?
Both are open source. one-api is licensed under MIT and apitest under MIT. Neither carries a licence fee.
What is the difference between one-api and apitest?
one-api is written in JavaScript and apitest in Go. 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 apitest?
Choose one-api if you want the larger community (36,932 stars) or its MIT licence terms. Choose apitest if its feature set, stack or MIT licence fits better. Both are self-hostable.