The Coin Market API
blog.coinmkt.com
blog.coinmkt.com
I don't think people realize when you get better than flat on fees, its somewhat like going from -1% house edge to no house edge in a casino (if you're a market maker type at least..) Gotta have a decent strategy too of course :).. I would imagine in btc quick sharp trends though and in that case you're better off taking - mktmaking can be dangerous.
No thanks.