Aspen is the ultimate free API testing tool designed specifically for macOS users. With its user-friendly interface and AI capabilities, Aspen allows you to run API tests effortlessly without the need for any login. This native app prioritizes your privacy and security with a ZERO trust approach, making it easy and safe to test your APIs. Whether you're a developer or just exploring API functionalities, Aspen empowers you to streamline your testing process and enhance productivity—all for free!