OpenSea is a marketplace for non-fungible tokens (NFTs). According to 1 and 3, some of the pros of using OpenSea include OpenSea charges a standard commission rate of 2.5% for NFT transactions, which is lower than many other NFT marketplaces, and OpenSea allows users to buy and sell a variety of NFTs, including domain names, digital art, and collectibles. One con of using OpenSea is that some video game elements carry higher commission rates, ranging from 10% to 15%. This rate applies to both the buyer and seller.