Chapter 6 – Test Tools
OpenAPI (Swagger) – ISTQB Definition
Last Updated: July 12, 2026 · SoftwareTestPilot QA Team
Official ISTQB Definition
A specification for describing REST APIs in a machine-readable format, enabling documentation, code generation, and contract testing.
In simple words
A standard format for describing what an API can do.
Exam tip
OpenAPI 3.x is the current standard; Swagger 2.0 is legacy but still common.
Related terms
Practice this term in the ISTQB Mock Test
40 CTFL v4.0 questions, 60-minute timer, instant scoring and chapter-wise breakdown.
Practice in Mock Test