Keploy is an open-source tool designed to simplify API testing by converting API calls into test cases with data mocks. It allows developers to record and replay complex, distributed API flows as mocks and stubs, helping automate and streamline testing processes. It integrates seamlessly with unit testing libraries like JUnit, PyTest, Jest, and Go-Test in CI/CD pipelines, ensuring comprehensive test coverage. Keploy also helps identify and remove duplicate tests, enhancing efficiency, and supports multiple programming languages.