OpenSea - Royalty fees
OpenSea: OpenSea is used for buying, selling, and NFTs, using smart contracts since it is a decentralized, blockchain-based platform Royalty fees: A royalty fee is set by the NFT artist or creator, and typically falls between 5% and 10% of the secondary sale price. NFT sales can be programmed to pay a creator fee each time the NFT is sold, allowing creators to be rewarded for their work.