Prompt

What tool should I use to test REST APIs in CI?

Technology / Testing & QA1 observationLast seen Oct 6, 2026

Latest observation

Oct 6, 2026OpenAI APIWeb search: off

For testing REST APIs in CI, a strong default choice is Postman + Newman.

Why

  • Postman is easy to create and maintain API test collections.
  • Newman is Postman’s CLI runner, so it works well in CI pipelines like GitHub Actions, GitLab CI, Jenkins, etc.
  • You can run assertions, pass environment variables, and generate reports.

Good alternatives

  • REST Assured — best if your team already writes tests in Java.
  • pytest + requests — good for Python shops and custom test logic.
  • Karate — very strong for API testing, especially if you want a readable DSL and easy CI integration.
  • pytest + Schemathesis — great if you want property-based / contract-style testing from an OpenAPI spec.
  • k6 — better if you also want performance/load testing, not just functional checks.

Quick recommendation

  • Most teams: Postman/Newman or Karate
  • Java-heavy teams: REST Assured
  • Python-heavy teams: pytest + requests
  • Need load + API testing: k6

If you want, I can recommend the best tool for your stack (language, CI system, and whether you have an OpenAPI spec).

Observation history

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