Hit their JSON ticker service:
http://blockchain.info/tickerNote that the "15m" values for every currency are rounded to whole integers. I suspect they have a data-type issue on the backend; this *can't* actually be intentional, right? I've tried contacting their support (I even tweeted them) to no avail. Note that the "24h" values look fine. Also note that their documentation shows the "15m" values as decimals/floats (
http://blockchain.info/api/exchange_rates_api).
Regardless, I need to get my project out the door, so I'm just going to use the gox ticker (
https://mtgox.com/api/1/BTCUSD/ticker), but I find blockchain's services elegant in general, and this bug on their part is annoying me.