Instead of testing the APIs themselves, developers and testers are stuck in manual tests, where the user tests the application at UI level and waits for the entire application stack to be built before they can start testing them. Automation testing can be run to test applications at the API level by designing test cases that interact with the APIs and offer numerous benefits, including the ability to test the business logic layer in a simple, automated, and stable way. Instead of testing the API itself, developers and testers can stick to the application UI user testing levels and wait for the entire application stack to be built up to start testing.