Callof.shop is an online marketplace focused on buying and selling Call of Duty accounts. The site features listings across a range of player levels, regions, prices, weapons, and in-game items, and allows sellers to advertise accounts by providing descriptions, images, pricing, and sale conditions. Buyers can browse available accounts and purchase directly through the platform.

A central service is its assisted transaction process. According to the site, the buyer’s payment is held in an intermediary account while support staff coordinate the transfer of account details. After the buyer confirms successful delivery, payment is released to the seller, with the site stating that transfers are generally completed within 24 hours. Callof.shop also offers guidance for buyers and sellers, including advice on checking listing details, using a reliable email address, and cooperating during account transfer. Its blog publishes information about account security, two-factor authentication, pricing, and the risks of buying through general classifieds.