head to head · open source
Insomnia vs one-api
Insomnia has 40,111 GitHub stars, 2,388 forks, 874 open issues and last shipped yesterday. one-api has 37,316 stars, 6,887 forks, 1,036 open issues and last shipped 10 months ago. Insomnia leads on adoption by 7% (40,111 vs 37,316 stars). Insomnia is written in TypeScript under Apache-2.0; one-api is written in JavaScript under MIT. Insomnia has attracted 6% as many forks as stars, one-api 18%. Insomnia was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (api), so they are genuine substitutes rather than adjacent tools.
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
| Insomnia | one-api | |
|---|---|---|
| GitHub stars | ★ 40K | ★ 37K |
| License | Apache-2.0 | MIT |
| Written in | TypeScript | JavaScript |
| Last push | 2026-11-02 | 2026-01-09 |
| Forks | ⑂ 2.4K | ⑂ 6.9K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Insomnia if
- You weight community size — 40K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick one-api if
- You want the one-api feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches JavaScript
- You evaluated both and one-api fits your workflow better
About Insomnia
Insomnia API Client Insomnia is an open source, cross platform API client for GraphQL, REST, WebSockets, Server Sent Events (SSE), gRPC and any other HTTP compatible protocol. With Insomnia you can: Debug APIs using the most popular protocols and formats. Design APIs using the native OpenAPI editor and visual preview. Test APIs using native test suites and collection runner. Mock APIs using a cloud or self hosted mocking server. Build CI/CD pipelines using the native Insomnia CLI for linting and testing. Collaborate with others using the many collaboration features. And more including the ability to use 3rd…
read the full Insomnia overview →
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 →
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Frequently asked questions
Is Insomnia or one-api more popular?
Insomnia has 40,111 GitHub stars and one-api has 37,316. Insomnia has the larger community by that measure.
Are Insomnia and one-api free?
Both are open source. Insomnia is licensed under Apache-2.0 and one-api under MIT. Neither carries a licence fee.
What is the difference between Insomnia and one-api?
Insomnia is written in TypeScript and one-api in JavaScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Insomnia or one-api?
Choose Insomnia if you want the larger community (40,111 stars) or its Apache-2.0 licence terms. Choose one-api if its feature set, stack or MIT licence fits better. Both are self-hostable.