OpenSea is the world's first and largest NFT marketplace for NFTs and crypto collectibles.
Build a portion of a criteria offer including the merkle tree needed to post an offer.
Offchain cancel a single order, offer or listing, by its order hash when protected by the signedzone. protocol and chain are required to prevent hash collisions. please note cancellation is only assured if a fulfillment signature was not vended prior to cancellation.
Create a criteria offer to purchase any nft in a collection or which matches the specified trait.
Create an offer to purchase a single nft (erc721 or erc1155).
List a single nft (erc721 or erc1155) for sale on the opensea marketplace.
Retrieve all the information, including signatures, needed to fulfill a listing directly onchain.