Overview
FlipSwap is an NFT marketplace where sellers list a single NFT for a fixed price in ADA, and buyers pay them directly through a smart contract (a small program on Cardano that runs the swap automatically)1. It is built for collectors and creators who want a simple way to flip individual pieces without setting up a full storefront.
FlipSwap runs on Cardano and is non-custodial, meaning the platform never touches wallet keys or holds the NFT off-chain. The product is in beta, with the marketplace and listing flow already live on Cardano mainnet2.
Key Features
- Fixed-price NFT swaps in ADA. Sellers list one NFT for a set ADA price between 5 and 10,000 ADA, and buyers complete the trade in a single signed transaction from their wallet3.
- 1% fee, free cancellations. FlipSwap takes 1% of the listing price (1 ADA minimum) from the seller's proceeds when a sale closes, and cancelling an unsold listing costs nothing1.
- Refundable seller collateral. Sellers lock 2 ADA alongside the NFT when listing, and this collateral comes back to the seller once the swap is claimed or cancelled. The lock keeps the on-chain transaction from failing partway through1.
- Public or private trades. A public trade is open to any wallet; a private trade locks the purchase to one wallet address chosen by the seller, useful for arranging a sale with a specific buyer1.
- Works with common Cardano wallets. Any Cardano browser wallet that supports the CIP-30 connector standard works, including Eternl, Lace, Flint, and Nami, so users sign every action in the wallet they already use1.
What to Expect
The site opens onto a marketplace page where visitors can browse open swaps, sort by price, and click into any listing to see the NFT and its on-chain details. Creating a listing takes a wallet connection, picking the NFT, setting a price, and signing the transaction; a built-in fee simulator on the homepage shows exactly what each side will receive before signing.
Once a listing is live, the seller can cancel it at any time without paying a fee. Completed and cancelled swaps show up under a personal "My Swaps" view, and a separate history tab keeps a local log of the user's activity.
The smart contracts are written in Aiken and evaluated through Ogmios and Blockfrost, two common Cardano data providers, and no independent third-party security audit has been published2. Sellers initiate every trade by creating a fresh listing, and buyers complete trades from the open marketplace.
