livestatus

https://acornmetric.com/s/jypzzT5_X8T-tImE8r8p0

Livestatus is a tool that connects Nagios and Icinga monitoring systems directly to your applications, letting you check service status in real time through a simple interface. It works by providing a socket-based API that feels fast and responsive, so you can see exactly what's happening with your hosts and services without the overhead of a web server.