We at Medved Trader (www.medvedtrader.com) trading platform have been busy integrating crypto feeds/sites into our software. We connect to lots of brokers and our users requested us to connect to crypto exchanges recently.

Right now we connect to Bitfinex, Poloniex and GDAX. Our software connects to those sites for data and does charting, tech indicators, DOM/L2 book, alerts, RT algorithmic scanning etc.

Integrating trading/account management for those sites is coming shortly. Try it.