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

Simulate APIs, integrations, and environments at enterprise scale.

API Testing Platform that automatically generates unit test cases with dependency mocks from API calls

Fully integrated API and web service testing capabilities that automate end-to-end functional API testing.

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

Vigil is an open-source Status Page you can host on your infrastructure, used to monitor all your servers and apps, and visible to your users.