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.

Code, test, and deploy synthetic monitoring at scale.

REST API client library for .NET

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

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

Postman is an API platform for building and using APIs. Postman simplifies each step of the API lifecycle and streamlines collaboration so you can create better APIs—faster.