How do I list an item for sale?

1. Open the item from your profile and choose List.
2. Pick a type: Fixed price, English auction (bids rise; highest bid at the end wins, subject to any reserve), or Dutch auction (price starts high and falls until someone buys).
3. Set the price (or start price, reserve, and end price), the currency, and the expiry. If you set no expiry the listing runs for 365 days.
4. If this is the first time you sell from this collection, approve the settlement contract to transfer it — one on-chain transaction.
5. Sign the listing. Fixed-price listings are signed messages and cost no gas; auctions are created on-chain.

The listing shows your net proceeds after creator earnings and the 0.5% marketplace fee. A listing stays fillable until it expires or you cancel it on-chain — see How do I cancel or lower the price of a listing?.