Why does Google require a minimum traffic level?
We originally opened the AdSense API to anyone who wanted to use it. We were very pleased at the enthusiastic response that we received from a variety of partners, but the response was greater than anticipated. As a result, we were not been able to provide the high level of support to our developers that we would have liked to. This requirement allows us to build out our support resources and processes to handle higher volumes of developers. We hope to lower the page view requirement over time so more and more developers can take advantage of the AdSense API.