Run an auction

Have CCT

Wrap NFT credits first (see Sell credits). You need a CCT balance covering the auction amount.

Create the auction

On /app/sell-credits choose Auction. Enter the amount (tonnes), Starting Bid (a total in payment token for the whole lot) and an End Date (browser local time) that is between 1 hour and 30 days from now. Click Create Listing. After an optional CCT approve, the app calls createAuction(amount, startPrice, endTime) with endTime as an absolute Unix timestamp, which locks the CCT.

Watch it

The auction appears at /app/auctions with a Seller badge and Seller Controls: highest bid, bidder, and a bid-history link.

Settle

• No bids: click Cancel Auction any time (cancelAuction), or wait for the end and call finalize; the CCT returns to you.
• With bids: you cannot cancel. After the end time click Accept & Finalize, which calls finalizeAuction. You receive the highest bid minus the 0.25 % default fee (the rate that applied when the auction was created); the winner receives the CCT. If the payment token refuses to pay you, the proceeds become claimable with Claim.

Have payment token and gas

See Buy credits for test payment token (testnet only); on mainnet you need real payment token.

Place a bid

Open /app/auctions, click Place Bid, and enter your total bid in payment token. It must be at least the starting price and strictly higher than the current bid. The app approves payment token if needed (approve(marketplace, bid)), then calls placeBid(auctionId, bidAmount). The payment token is escrowed.

If you are outbid

Your payment token is refunded automatically in the same transaction as the higher bid (if the token refuses the transfer, the refund appears as a Claim banner on the marketplace). The card shows Outbid and a Place Higher Bid button.

Claim

After the timer ends, the winner sees Finalize & Claim CCT and calls finalizeAuction. The CCT is transferred to the winning wallet.