SHSelfHostIndex

ATAC vs Prism Mock

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?
AT ATAC Terminal-based API client inspired by Postman VS PR Prism Mock OpenAPI-driven mock server and contract validation proxy
FeatureATACPrism Mock
CategoryDeveloper Tools & GitDeveloper Tools & Git
LicenseMITApache-2.0
LanguageRustTypeScript
Setup difficultyEasyEasy
Min. RAM64 MB128 MB
Deploymentbinary, sourcedocker, binary
GitHub stars★ 3,689★ 5,002
First released20242017
ReplacesPostman, InsomniaPostman, Stoplight

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
ATAC details

Choose Prism Mock if…

  • Spec stays the source of truth
  • Good for contract testing
Prism Mock details

Frequently asked questions

Is ATAC or Prism Mock better?

Neither is universally better. Prism Mock has the larger community; both share a easy setup difficulty, so the decision comes down to features and licensing.

Are ATAC and Prism Mock free and open-source?

Yes. ATAC is licensed under MIT and Prism Mock under Apache-2.0. Both can be self-hosted at no software cost.

Can I run ATAC and Prism Mock with Docker?

ATAC: check the project docs for container support. Prism Mock: yes.

Related comparisons