As the software industry increasingly adopts an API-first approach, Postman has emerged as a vital tool for developers and testers, facilitating the design, testing, and publication of APIs for over 6 million developers and 200,000 organizations globally. Central to Postman are Collections, which organize HTTP requests and support API documentation, testing, and mock server creation, while allowing for collaborative workspaces. The tool's ability to execute collections enables comprehensive API testing, including end-to-end and health checks. In continuous integration (CI) environments, Postman's Newman command line tool allows collections to be executed within build or release pipelines, supporting a range of tests and generating detailed reports. To streamline the integration of Newman in CI pipelines, particularly with CircleCI, the Newman orb simplifies setup and execution, thus enhancing API automation workflows.