head to head · open source
one-api vs AngusTester
one-api has 36,932 GitHub stars, 6,867 forks, 1,036 open issues and last shipped 8 months ago. AngusTester has 1,843 stars, 201 forks, 0 open issues and last shipped 18 days ago. one-api leads on adoption by 1,904% (36,932 vs 1,843 stars). one-api is written in JavaScript under MIT; AngusTester is written in various languages under GPL-3.0. one-api has attracted 19% as many forks as stars, AngusTester 11%. AngusTester 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 | AngusTester | |
|---|---|---|
| GitHub stars | ★ 37K | ★ 1.8K |
| License | MIT | GPL-3.0 |
| Written in | JavaScript | — |
| Last push | 2026-01-09 | 2026-08-31 |
| Forks | ⑂ 6.9K | ⑂ 201 |
| 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 AngusTester if
- You want the AngusTester feature set and don't need the biggest community
- You prefer the GPL-3.0 license terms
- You evaluated both and AngusTester 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 AngusTester
AngusTester is AI native software testing platform. It lives in AngusKit ecosystem. It is Test product in AngusKit. GitHub repo hosts documentation only. Source code is distributed through private deployment packages, not GitHub. Earlier revisions contained application source. Distribution moved to AngusKit packaging pipeline. Repo focuses product information, quickstart guides, documentation links. Community Edition source is licensed under GPL 3.0.
read the full AngusTester overview →
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Frequently asked questions
Is one-api or AngusTester more popular?
one-api has 36,932 GitHub stars and AngusTester has 1,843. one-api has the larger community by that measure.
Are one-api and AngusTester free?
Both are open source. one-api is licensed under MIT and AngusTester under GPL-3.0. Neither carries a licence fee.
What is the difference between one-api and AngusTester?
one-api is written in JavaScript and AngusTester in various languages. 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 AngusTester?
Choose one-api if you want the larger community (36,932 stars) or its MIT licence terms. Choose AngusTester if its feature set, stack or GPL-3.0 licence fits better. Both are self-hostable.