head to head · open source
one-api vs springdoc-openapi
one-api has 36,940 GitHub stars, 6,867 forks, 1,036 open issues and last shipped 8 months ago. springdoc-openapi has 3,736 stars, 603 forks, 14 open issues and last shipped 12 days ago. one-api leads on adoption by 889% (36,940 vs 3,736 stars). one-api is written in JavaScript under MIT; springdoc-openapi is written in Java under Apache-2.0. one-api has attracted 19% as many forks as stars, springdoc-openapi 16%. springdoc-openapi 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 | springdoc-openapi | |
|---|---|---|
| GitHub stars | ★ 37K | ★ 3.7K |
| License | MIT | Apache-2.0 |
| Written in | JavaScript | Java |
| Last push | 2026-01-09 | 2026-09-06 |
| Forks | ⑂ 6.9K | ⑂ 603 |
| 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 springdoc-openapi if
- You want the springdoc-openapi feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Java
- You evaluated both and springdoc-openapi 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 springdoc-openapi
springdoc openapi is on Open Collective. If you ❤️ this project consider becoming a sponsor. This project is sponsored by Table of Contents Full documentation Security contact information Versioning Introduction Getting Started Library for springdoc openapi integration with spring boot and swagger ui Spring boot with OpenAPI Demo applications. Source Code for Demo Applications. Demo Spring Boot 4 Web MVC with OpenAPI 3. Demo Spring Boot 4 WebFlux with OpenAPI 3. Demo Spring Boot 4 WebFlux with Functional endpoints OpenAPI 3. Demo Spring Boot 4 and Spring Hateoas with OpenAPI 3. Integration of the library in a Spr…
read the full springdoc-openapi overview →
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Frequently asked questions
Is one-api or springdoc-openapi more popular?
one-api has 36,940 GitHub stars and springdoc-openapi has 3,736. one-api has the larger community by that measure.
Are one-api and springdoc-openapi free?
Both are open source. one-api is licensed under MIT and springdoc-openapi under Apache-2.0. Neither carries a licence fee.
What is the difference between one-api and springdoc-openapi?
one-api is written in JavaScript and springdoc-openapi in Java. 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 springdoc-openapi?
Choose one-api if you want the larger community (36,940 stars) or its MIT licence terms. Choose springdoc-openapi if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.