For real-time data, the Cryptocompare API is used (https://www.cryptocompare.com/api/#), more specifically HistoMinute (https://www.cryptocompare.com/api/#-api-data-histominute-), which gives us access to OHLC data for the past seven days at most. The details of the API will be discussed in a section devoted to implementation, but the API response is very similar to our historical dataset, and this data is retrieved using a regular HTTP request. For example, a simple JSON response from https://min-api.cryptocompare.com/data/histominute?fsym=BTC&tsym=USD&limit=23&aggregate=1&e=Bitstamp has the following structure:
{ "Response":"Success", "Type":100, "Aggregated":false, "Data": [{"time":1510774800,"close":7205,"high":7205,"low":7192.67,"open":7198, ...
