Uptime Kuma is an easy-to-use self-hosted monitoring tool.

Status, performance and uptime monitoring for cron jobs, websites, APIs and more.

HyperTest is a no-code test automation tool that regresses all your APIs by auto-generating integration tests using your network traffic, also giving a way to reproduce these failures inside actual user-journeys.

Requestly is an open-source tool that simplifies API development, testing, mocking, and integration for developers and QAs.

Real API Design-first Development Platform Design. Debug. Test. Document. Mock. Build APIs Faster & Together.

Built for developers and testers alike, SoapUI is the only open source tool that covers the entire testing spectrum (functional, security, load, mocking).