A simple Google Chrome extension written against the Alerta API.
To add it to Chrome, click on Settings -> Tools -> Extensions.
Make sure the Developer Mode box is ticked, then click the 'Load Unpacked Extension...' button and pick the directory of the extension.
From the Alerta extension options, you'll at least need to enter the URLS for both the API and Dashboard. You can select the desired envionments and severity to check.
Available under the MIT License
Copyright (c) 2014 Andy Botting
This extension is also based on the Google Mail Checker extension Copyright (c) 2012 The Chromium Authors.