head to head · open source
one-api vs dev-proxy
one-api has 37,316 GitHub stars, 6,887 forks, 1,036 open issues and last shipped 10 months ago. dev-proxy has 838 stars, 90 forks, 36 open issues and last shipped yesterday. one-api leads on adoption by 4,353% (37,316 vs 838 stars). one-api is written in JavaScript under MIT; dev-proxy is written in C# under MIT. one-api has attracted 18% as many forks as stars, dev-proxy 11%. dev-proxy 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 | dev-proxy | |
|---|---|---|
| GitHub stars | ★ 37K | ★ 838 |
| License | MIT | MIT |
| Written in | JavaScript | C# |
| Last push | 2026-01-09 | 2026-11-02 |
| Forks | ⑂ 6.9K | ⑂ 90 |
| 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 dev-proxy if
- You want the dev-proxy feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches C#
- You evaluated both and dev-proxy fits your workflow better
About one-api
中文 English 日本語 One API ✨ 通过标准的 OpenAI API 格式访问所有的大模型，开箱即用 ✨ 部署教程 · 使用方法 · 意见反馈 · 截图展示 · 在线演示 · 常见问题 · 相关项目 · 赞赏支持 [!NOTE] 本项目为开源项目，使用者必须在遵循 OpenAI 的使用条款以及 法律法规 的情况下使用，不得用于非法用途。 根据《生成式人工智能服务管理暂行办法》的要求，请勿对中国地区公众提供一切未经备案的生成式人工智能服务。 [!NOTE] 稳定版 / 预览版镜像地址：justsong/one api 或者 ghcr.io/songquanpeng/one api alpha 版镜像地址：justsong/one api alpha 或者 ghcr.io/songquanpeng/one api alpha [!WARNING] 使用 root 用户初次登录系统后，务必修改默认密码 123456 ！ 功能 1. 支持多种大模型： + [x] OpenAI ChatGPT 系列模型（支持 Azure OpenAI API） + [x] Anthropic Claude 系列模型 (支持 AWS Claude) + [x] Google PaLM2/Gemini 系列模型 + [x] Mistral 系列模型 + [x] 字节跳动豆包大模型（火山引擎） + [x] 百度文心一言系列模型 +…
read the full one-api overview →
About dev-proxy
Dev Proxy Test the untestable Documentation What is Dev Proxy? Dev Proxy is an API simulator that helps you effortlessly test your app beyond the happy path. Dev Proxy is a command line tool that works on any platform. Because it intercepts network requests, it works with any type of app and tech stack. Dev Proxy is open source and free to use . You test your app to make sure it works as intended. But what if the APIs you use fail? Will your app lose your customer's data? How do you test for this? Simulating API failures is hard. You end up writing code that you won't be shipping or worse: not testing at all…
read the full dev-proxy overview →
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Frequently asked questions
Is one-api or dev-proxy more popular?
one-api has 37,316 GitHub stars and dev-proxy has 838. one-api has the larger community by that measure.
Are one-api and dev-proxy free?
Both are open source. one-api is licensed under MIT and dev-proxy under MIT. Neither carries a licence fee.
What is the difference between one-api and dev-proxy?
one-api is written in JavaScript and dev-proxy in C#. 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 dev-proxy?
Choose one-api if you want the larger community (37,316 stars) or its MIT licence terms. Choose dev-proxy if its feature set, stack or MIT licence fits better. Both are self-hostable.