Once you have minted a piece on Foundation, the work will also be available for others to make offers on the work through OpenSea or Rarible. NFTs are publicly available, and can appear across multiple platforms. Read our note about public information on the blockchain here.
If you want to use Foundation’s auction format you can choose to list the piece on our site.
You are free to accept bids on OpenSea and Rarible, however, note that if you do, the NFT will no longer be visible on your Foundation profile.