I work for PagerDuty. What issues are you having with the Pingdom integration? I'm sure some of our other integrations may be of interest: http://www.pagerduty.com/partners/. If you have any questions or need any help feel free to contact me.

I would rather it use the API rather than email.

I think it's also prone to misconfiguration, since you have to explicitly check a box to alert when back up.

It just feels like a second class citizen.

I also work for PD.

re: using the API, we'd rather it did so also, but for the longest time Pingdom only sent out e-mail and didn't have any sort of webhook. They apparently have webhook support in their new Beep Manager offering, but that's still in beta.

re: misconfiguration, which check box are you referring to? The only two there are for ack timeouts and auto resolution.

Checkbox: "Notify when Back Up" http://www.pagerduty.com/docs/guides/pingdom-integration-gui...

Come check us out at https://www.statuscake.com - we do have Pagerduty integration via the API (It's not full featured yet to be honest, but I'd say within the next few weeks we'll have an even better connection)