title: Is there an API call I can make to get the number of App Engine Instances I'm running?
body: <p>It's a pretty simple question, really. I want to report the number of running instances to datadog, along with a bunch of my other stats.</p>
  
  <p>There's an irony to the fact that I search Google Web Search for how to do something in Google App Engine and get the crappiest possible result, every time: The Google App Engine documentation pages. </p>