No, an account is not needed. Primex is a non-custodial platform, meaning that you connect to it with a compatible Web3 wallet, and only you are in control of your funds.
NOTE:
Besides your Web3 wallet Primex provides traders with the Account Balance which is an audited secure smart contract (address) responsible for storing your trader funds. For more details, kindly refer to the Difference between Wallet and Account balance.