FTX

FTX exchange FAQ

Trading Futures

You need to have USD to trade futures while Bitcoin or other altcoins can act as collateral, but only in some portion.

This is different from BitMex for example, where you hold Bitcoin only as collateral.

I have error connecting FTX API to Wunderbit

Please make sure, you don't use spaces in the subaccount name on FTX, it will make an error on Wunderbit.