Normally I do not cover tools here but I do with exceptions. As you know Google released the new Search Analytics API and those webmasters and developers that love APIs are rejoicing. But there is already one tool that has been updated to use the API, that pretty much makes it easy for you to store the search analytics data on your own server, this way you can keep your data for longer than 90-days.
The script can be found over here, it was updated to use the new API, it formerly used the old CSV download feature. It was designed by Paul Shapiro and he was incredibly quick to update it to use the new API. I am not sure if he was part of the beta.
Google's John Mueller called it out on Google+ saying:
Here's a neat script that downloads your site's Search Analytics data and stores it in a database for long-term use. It's updated to use the new API too, woot!I'm looking forward to see what other folks make :)
Forum discussion at Google+.