sensu/sensu-community-plugins — pull request #175 by pumpkineater (2013-04-10 03:13:44+00:00)
Title: Opsgenie heartbeat plugin

You can use this plugin on a sensu server to send heartbeats to opsgenie every 5 minutes. A lack of heartbeats will result in an alert.

http://support.opsgenie.com/customer/portal/articles/759603-heartbeat-monitoring