WireMock

WireMock is an open-source HTTP mock server designed for simulating APIs. It can be run standalone or embedded, providing programmatic control over mock responses through code or configuration. The tool supports dynamic responses, fault simulation, and offers record/playback functionality for creating stub mappings. It allows for fine-grained control over responses and can create flexible mocks and stubs from recorded traffic. WireMock is suitable for developers who require deep customization and control in their API simulation workflows.