Automated CD KEY / Screenshot plugin - Magento

I would like to offer an automated 'instant' delivery CD KEY / system for an ecommerce magento website. There are currently things that exist in the market: Here is an example: [login to view URL] Basically, when a customer purchases an item a text notification is sent to the user for verification purposes. Once confirmed a "picture" is instantly e-mailed to the user as well as stored in their online user account for them to access at a later date. We want to be able to offer a similar 'instant' delivery service. Whereby we can upload inventory to our website and it automatically distributes the stock "codes" once a verified purchase is made. We are using magento currently - see our site at [login to view URL]