I wrote this Python script to gather OHLC data (with 1min interval) from GDAX. It's open-source (MIT) and I've been running it daily for about 3 months and gathered 6160206 records (571MB). You can get it on GitHub:<p>https://github.com/arthurk/gdax-ohlc-import<p>Feel free to write here if there are any suggestions or questions.