API-First Testing approach has revolutionized mobile testing by focusing on triggering mobile app behavior via APIs during CI runs.This method offers more control over test execution, allows skipping UI when not necessary, and enables true automation across devices.By integrating lightweight API testing layer into the CI/CD pipeline, the team experienced less flakiness, faster feedback, and easier scalability.Tools like NativeBridge, Appetize, BrowserStack, and Lambda were utilized for API integration, making the testing process stable and scalable.