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).
In general, listing items is gas-free. However, when you first list an item in a collection, you may be prompted to approve the collection, which does cost gas. For more information about collection approvals, see our help guide.
Selling an item
Who pays the gas fees when an item is sold 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.