In this QuantConnect University algorithm we import Bitcoin daily data and use it as a tradable security! The boilerplate strategy just buys $100k BTC and holds until today.

This as an example of how import custom data. You can either use custom data as indicators, or in this case use data to create a *fully fledged security* for trading. Because its daily data the backtest takes a few seconds :)

Data has been imported from Quandl. I'd recommend signing up there and getting your own API key. Append your access token to the data source URL.