Historical Crypto Data
Free version to the previously proposed paid version:


  Actually, you CAN get the whole Bitcoin trades history from Bitcoincharts in CSV format here : http://api.bitcoincharts.com/v1/csv/
  
  it is updated twice a day for active exchanges, and there is a few dead exchanges, too.
  
  EDIT: Since there are no column headers in the CSVs, here's what they are : column 1) the trade's timestamp, column 2) the price, column 3) the volume of the trade


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