Currently there is no Adsense API for accessing account statistics / reports. Fortunately, Alex Polski (Victor Klepikovskiy) runs a project on Google Code that provides a PHP class to login and download a variety of reports from Adsense.
So, if you want to monitor your Adsense reports in your own systems, you should give his PHP Adsense Account Library a try.
It supports:
- Parse overview stats into an associative array.
- Shows quick stats for Today
- Show quick stats for Yesterday
- Show quick stats for Last 7 Days
- Show quick stats for This Month
- Show quick stats for Last Month
- Show quick stats since Last Payment
- Get a specific report as a CSV file
- Get a specific report as an associative array.