Which of the following are common API testing tools?

Postman and SoapUI are commonly used tools specifically designed for API testing. They facilitate the development and testing of application programming interfaces (APIs) and provide features that simplify the process of sending requests and analyzing responses.

Postman is particularly user-friendly, allowing testers to create, share, and document API requests quickly. It supports a variety of authentication mechanisms and enables automated testing through its scripting capabilities. Furthermore, Postman offers a collaboration feature, making it easier for teams to work together on API tests and documentation.

SoapUI, on the other hand, is tailored more towards testing SOAP and RESTful web services. It provides comprehensive testing capabilities, including functional, regression, and load testing. Its graphical user interface makes it accessible for users who may not be familiar with raw code, while its scripting features allow for advanced customization and automation of tests.

Choosing this option highlights the well-established tools that are integral to effective API testing practices in the software development lifecycle. Other choices, while containing useful software, do not primarily focus on API testing.