How do I Integrate my game center data into my website?

Hi me and my friends would like to be ale to share our game center data across out website.

I am aware that the game center api allows developers to pass data about the game to apple to use in the game center, but then is it possible for a third party such as myself to access that data so it shows on a website.

Or is the only option that we must manually enter our game center info ourselves?

Thanks for any help.