head to head · open source
one-api vs swift-openapi-generator
one-api has 36,940 GitHub stars, 6,867 forks, 1,036 open issues and last shipped 8 months ago. swift-openapi-generator has 1,971 stars, 182 forks, 132 open issues and last shipped 18 days ago. one-api leads on adoption by 1,774% (36,940 vs 1,971 stars). one-api is written in JavaScript under MIT; swift-openapi-generator is written in Swift under Apache-2.0. one-api has attracted 19% as many forks as stars, swift-openapi-generator 9%. swift-openapi-generator 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 | swift-openapi-generator | |
|---|---|---|
| GitHub stars | ★ 37K | ★ 2.0K |
| License | MIT | Apache-2.0 |
| Written in | JavaScript | Swift |
| Last push | 2026-01-09 | 2026-09-01 |
| Forks | ⑂ 6.9K | ⑂ 182 |
| 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 swift-openapi-generator if
- You want the swift-openapi-generator feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Swift
- You evaluated both and swift-openapi-generator 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 swift-openapi-generator
Swift OpenAPI Generator is an Apache 2.0 licensed Swift package plugin and command line tool from Apple that reads an OpenAPI document written in YAML or JSON and generates the type safe Swift client and server code needed to make HTTP calls or implement HTTP services, and it is aimed at Swift developers building API clients for Apple platforms and at server side Swift developers implementing HTTP APIs. It is an SSWG incubating project.
read the full swift-openapi-generator overview →
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Frequently asked questions
Is one-api or swift-openapi-generator more popular?
one-api has 36,940 GitHub stars and swift-openapi-generator has 1,971. one-api has the larger community by that measure.
Are one-api and swift-openapi-generator free?
Both are open source. one-api is licensed under MIT and swift-openapi-generator under Apache-2.0. Neither carries a licence fee.
What is the difference between one-api and swift-openapi-generator?
one-api is written in JavaScript and swift-openapi-generator in Swift. 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 swift-openapi-generator?
Choose one-api if you want the larger community (36,940 stars) or its MIT licence terms. Choose swift-openapi-generator if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.