Listing an item
You don't have to pay gas fees to "mint" each individual item until the item is sold. This is known as lazy minting, which is when an NFT is minted once it's sold (rather than minted upon listing).
You will need to pay gas when listing a new item on Ethereum for the first time.
Selling an item
There are gas fees when an item is sold. Who pays the fees depends on the transaction.
- Buyers pay gas fees when purchasing a fixed-price item.
- Sellers pay gas fees when accepting offers.
- OpenSea pays the gas for auction listings that Sell to the highest bidder with a reserve price set.
You can learn more about gas fees on Ethereum in our help guide.