In a word, yes. We've looked at doing something similar for upstream telecom providers as we interconnect with so many of them. When someone drops a DS3 somewhere we know about it and folks in the industry would love access to that info.
I can tell you that I would love to have an API health Dashboard, and I'd love it even more if you made an API for it.
"The problem with Admin control panel / API should be resolved. We apologize for the inconvenience and thank you for your patience and continued support.
Please rest assured that system reliability is a top priority at Google, and we are making continuous improvements to make our systems better.
Users were unable to use Google APIs, or were receiving errors when using Google APIs."
You'll notice though in the Uptime and Performance History that most of the Google APIs have been marked as being down for the entirety of the last week, which indicates to me that the logic they are using to test the APIs may no longer be valid for some of them.