Did you know API Fortress can generate API tests from Open API specifications, as well as Swagger, RAML, and Postman Collections?
It’s super easy, as well! From the Project page, choose “New Tests from SPEC”, just choose ‘Build from SPEC’, then upload your spec file. You can also point to your spec’s URL; just change the mode from the dropdown in the top right hand corner:
You can then choose which endpoints you wish to create tests for, and you’re basically done! One test will be created per path chosen from the spec file.