I need to monitor my service for uptime. My service can only do push notifications of it's status. Meaning, I can report to some 3rd party that I'm alive and well, but it cannot act as a server by itself, so no pinging it.
Can you recommend existing web-service which support this mode of operation? They should also support SMS alerts (or any other mobile phone notifications).
It would be cool for them to have a RESTful API so I can integrate my service with them.
I already took a look at Uptime Robot and PagerDuty but I cannot figure out if the support this mode of operation.
The service does not have to be free.