OpenAPI Test Case Generator
Generate structured positive and negative test case drafts from any OpenAPI document with boundary hints. Free API test tool by Graph Tools.
Use this free OpenAPI test case generator to create structured positive and negative test case drafts from any OpenAPI specification. Select an operation and get a generated test matrix covering happy-path scenarios, missing required parameter cases, invalid type inputs, out-of-range values, and boundary conditions. Each draft includes the expected status code and key assertions. Useful for QA engineers bootstrapping test plans, developers writing API integration tests, and teams estimating test coverage.