Let me know when you have a beta or something. We could definitely have used it for the crypto challenges, and we have a much bigger set of (non-crypto) challenges coming up that I'd love to plug directly into Watsi.

If we'd had an API, we would probably have done smaller-dollar donations for people who got (say) halfway through.

Also, weird as this will sound: it feels very awkward talking up donations from the challenges (for one thing, the dollar amounts we're talking about are a pittance), and so I rarely do. But if the donations were automated, we'd automatically post the donation totals as well. The way things like Twitter work, repetition is hugely valuable.