Getting your YouTube web or client application up and running is only half the battle. We know that you’ll also want to monitor your application to see how it’s performing. Our new Developer Dashboard shows you at a glance the number of API requests, playbacks, uploads and errors that your app is generating. You can visualize the data using our interactive chart or download a file to process the data offline. To use the dashboard, you’ll need to provide a developer key in your API requests and then pass the media URLs from the API responses to the standard embedded player or the chromeless player.
You can log into the new Developer Dashboard at http://code.google.com/apis/youtube/dashboard/