Only a Vulcan Forged account is needed for the Marketplace, enabling you to buy, sell and trade NFTS.
Find instructions on how to create a Vulcan Forged account here https://vulcanforged.atlassian.net/wiki/spaces/VULCANFORG/pages/13303904?atlOrigin=eyJpIjoiNjQ5YzlhYmI5YmMyNDFjMzlhNWZhODU5YjAzM2QzMGUiLCJwIjoiYyJ9