I started working on a Kraken Plugin. For now I excluded Poloniex as they have some widrawal issues for some wallets.
But I'm not sure zorro could be fully compatible with cryptocurrency exchanges.
One of my worries would be if you have your main account in bitcoin, that has 8 decimals, what would happen to zorro stats, that only give results with 2 decimals.
For the rest I think it might be fine.
Anyone from zorro team sees any other issues ?
API docs are below
https://www.kraken.com/help/api#general-usage

Thanks
Vincenzo