Keploy

Keploy is an open source AI-powered testing agent designed to help developers automatically generate and maintain API, integration, and unit tests. The platform records real API traffic and converts it into executable test cases that can be replayed in isolated sandbox environments for continuous integration pipelines. By leveraging AI to code tests automatically, Keploy enables development teams to achieve high test coverage in minutes rather than hours or days of manual test writing. The tool works by capturing live API interactions and generating deterministic, stable tests that can be executed consistently across different environments. This approach eliminates the brittleness common in traditionally written tests while significantly reducing the manual effort required for test maintenance. Keploy provides coverage reporting and performance testing capabilities alongside its core test generation features, offering developers a comprehensive testing solution that integrates directly into their existing workflows. With over 15,600 GitHub stars and more than 1.2 million downloads, Keploy has become one of the most popular open source testing tools in the developer community. The platform supports integration with popular development environments including VS Code and offers both command-line and graphical interfaces for different user preferences. Teams ranging from individual developers to large enterprises use Keploy to reduce testing overhead and improve code quality, with the platform having generated over 200 million test mocks to date.