ATAC vs Keploy
A side-by-side comparison of two self-hosted developer tools & git options — licensing, setup difficulty, resource needs, and what each one replaces.
Not the right match-up?
ATAC
Terminal-based API client inspired by Postman
VS
Keploy
Generate API tests and mocks from real traffic
| Feature | ATAC | Keploy |
|---|---|---|
| Category | Developer Tools & Git | Developer Tools & Git |
| License | MIT | Apache-2.0 |
| Language | Rust | Go |
| Setup difficulty | Easy | Medium |
| Min. RAM | 64 MB | 256 MB |
| Deployment | binary, source | docker, binary |
| GitHub stars | ★ 3,689 | ★ 18,380 |
| First released | 2024 | 2022 |
| Replaces | Postman, Insomnia | Postman |
Why pick each one
Choose ATAC if…
- Released under the MIT license
- Easy to set up — beginner-friendly
- Active community (3.7k GitHub stars)
- Written in Rust
Choose Keploy if…
- Released under the Apache-2.0 license
- First-class Docker support for quick deployment
- Mature project with 18.4k GitHub stars
- Written in Go
Frequently asked questions
Is ATAC or Keploy better?
Neither is universally better. Keploy has the larger community, while ATAC is simpler to set up (easy difficulty). Choose based on the comparison table above and your own setup.
Are ATAC and Keploy free and open-source?
Yes. ATAC is licensed under MIT and Keploy under Apache-2.0. Both can be self-hosted at no software cost.
Can I run ATAC and Keploy with Docker?
ATAC: check the project docs for container support. Keploy: yes.