QuantConnect (https://www.quantconnect.com) is incredibly diverse and supports live trading crypto-currency securities (along with equities and FOREX). We have a vibrant community discussing and sharing strategies including bitcoin algorithms.

The platform is C# and runs roughly 20x faster than our nearest competitor Quantopian. We also support high resolution intraday data unlike our competitor. Its all free to backtest and free live trading if you open a brokerage account with our special offer: https://www.quantconnect.com/tradier2