head to head · open source
one-api vs Yaak
one-api has 36,932 GitHub stars, 6,867 forks, 1,036 open issues and last shipped 8 months ago. Yaak has 19,224 stars, 813 forks, 19 open issues and last shipped yesterday. one-api leads on adoption by 92% (36,932 vs 19,224 stars). one-api is written in JavaScript under MIT; Yaak is written in TypeScript under MIT. one-api has attracted 19% as many forks as stars, Yaak 4%. Yaak 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.
← all 8884 open source comparisons
Side by side
| one-api | Yaak | |
|---|---|---|
| GitHub stars | ★ 37K | ★ 19K |
| License | MIT | MIT |
| Written in | JavaScript | TypeScript |
| Last push | 2026-01-09 | 2026-09-17 |
| Forks | ⑂ 6.9K | ⑂ 813 |
| 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 Yaak if
- You want the Yaak feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and Yaak 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 Yaak
Yaak is a desktop API client for REST, GraphQL, gRPC, WebSocket, and Server Sent Events. It is built with Tauri, Rust, and React, and it lives in the developer tools ecosystem for API development and testing. The project presents itself as an offline first, privacy first alternative to Postman, Insomnia, and Bruno.
More in Developer Tools
Related comparisons
More API Development & Testing projects
Compare either of these against the rest of the API Development & Testing field.
Frequently asked questions
Is one-api or Yaak more popular?
one-api has 36,932 GitHub stars and Yaak has 19,224. one-api has the larger community by that measure.
Are one-api and Yaak free?
Both are open source. one-api is licensed under MIT and Yaak under MIT. Neither carries a licence fee.
What is the difference between one-api and Yaak?
one-api is written in JavaScript and Yaak in TypeScript. 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 Yaak?
Choose one-api if you want the larger community (36,932 stars) or its MIT licence terms. Choose Yaak if its feature set, stack or MIT licence fits better. Both are self-hostable.