NagBar is an open source Nagios, Icinga and Thruk monitoring client which runs in the status bar and give updates about the monitored services. NagBar is a Mac OS X native application created using the Cocoa framework.

The idea for NagBar came from the Nagios Checker plugin for Firefox and Nagstamon.

NagBar is tested on Nagios 3.x and 4.x, Icinga 1.6+, Icinga 2 and Thruk 1.82+.

Supported Mac OS X versions are 10.10+.

Check more at https://github.com/volendavidov/NagBar