Nagios (API)

Nagios is an open-source monitoring system used to monitor the health of networked hosts and services.
Hyperping

Uptime monitoring with public status pages.
Host-Tracker

Website Monitoring Service
Checkly

Help Desk Software and Customer Service app. Both SaaS and On-Premise versions.
HaloITSM

ITSM Software | ITIL-aligned Service Desk Software
Pulsetic

Website Uptime Monitoring and Status Page
AlertSite

Monitor your websites, web apps, and APIs
Rollbar

Real-time exception reporting and continuous deployment monitoring for developers
DattoRMM

Datto Remote Monitoring and Management (RMM) is a fully-featured, secure, cloud-based platform which enables MSPs to remotely secure, monitor, manage, and support endpoints to reduce costs and increase service delivery efficiency. AlertOps’ alert management system can be integrated with DattoRMM to receive and respond to all (predefined status mappings) alerts through email, SMS, push notification […]
Radio Mast

Live audio stream hosting and monitoring for broadcasters, radio engineers, and agencies