OpenSea supports NFT trading across multiple blockchains. This guide explains how to use our Polygon marketplace…

Setting up your NFT collection and creating NFTs on OpenSea is easy! This guide explains…

We don't currently support auctions for ERC1155 assets with more than one owner of the…

Think of the Ethereum blockchain as the gallery where your artwork is hanging. OpenSea is…

'Mintable' collections, like Rarible and Cargo, are collections where users are able to freely mint NFTs onto shared…

As demand of Ethereum's network increases, processing times may take longer as well. If you…

Changing the supply quantity on Ethereum You can create fungible items* on Ethereum (items with…

You can use a variety of file formats for images, videos, audio or even 3D…

Currently, all declining-price listings expire when the expiration time is reached. However, if you create…

First-Time Sellers If this is your first listing with OpenSea, sellers must pay 2 transaction…