I've built www.SaveKrakenFees.lol a DCA tool to DCA into Bitcoin without having to write your own code. You can just use your Kraken Pro API Keys (dont worry, just "create order" and "query funds" permissions needed) and start DCA'ing and save 60% on fees. Using the 'normal' Kraken App costs you 1% while buying via the Kraken API costs 0,4%. So with my service you only pay 0.4% fees instead of 1% per trade. Might not sound much but I've already saved 12 bucks by using my own website instead of the normal Kraken app to DCA. Would mean a lot to me if you check it out and let me know what other features you would like to have implemented. Yes, its free of course. If you want I can open source the back- and frontend as well