Site by Tomasz Wegrzanowski (taw). You can contact me by email, twitter, or by my account on basically every social site imaginable.
I invite you to check out my blog and youtube channel but they're more about programming and video games than Magic: the Gathering.
Special thanks to Anthony Low for help with testing and to mtgjson for primary source of data used.
Code is all on github. If you want API access I'd recommend getting code from there instead of hammering the poor servers.
Card text and pictures are all copyright Wizards of the Coast.