For oneZero Hub taker: please send an email to clientservices@gc.exchange requesting the oneZero FIX API taker form. This needs to be completed and returned via email.
For a PrimeXM Xcore: please send and email to clientservices@gc.exchange with the request along with relevant IP/s address for whitelisting.
Note in both cases account needs to already onboarded/set-up and founded.