What should I use if I need version control friendly API tests?

If you want version-control-friendly API tests, the best choice is usually contract-based tests with human-readable, text-based files.

Good options

• Postman + Newman

  • Easy to start
  • Collections are JSON, so they can be versioned
  • Good for teams already using Postman

• REST Assured / pytest / JUnit + assertions in code

  • Tests live in normal source code
  • Best for Git diffs, reviews, and CI
  • Great if you want tests to behave like regular automated tests

• OpenAPI-driven testing

  • If your API has an OpenAPI/Swagger spec, you can test against the contract
  • Very version-control friendly because the spec is text-based
  • Useful for keeping tests aligned with the API definition

• PACT

  • Best for consumer-driven contract testing
  • Very version-control friendly
  • Helps ensure providers and consumers stay compatible

Best practical recommendation

If your main goal is easy diffing, review, and collaboration in Git, use:

1. Tests as code for functional API tests
2. OpenAPI or PACT for contract tests

Avoid if version control friendliness is critical

• Binary test artifacts
• GUI-only test definitions with poor export/diff support
• Tools that store most logic in opaque metadata rather than text files

If you want, I can recommend the best tool stack based on your language/framework (Python, Java, JS, etc.).