The largest marketplace for rare items

Buy, sell, discover, and trade limited-edition goods

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OpenSea for Developers

Empowering developers and designers with easy-to-use, powerful tools

Create your own marketplace
Build a beautiful marketplace for your ERC721 or ERC1155 assets for free, and earn revenue on every secondary sale of your items.
Pull market data from our digital asset API
Automatically show your users their own collectibles, and become an OpenSea affiliate to monetize your user base
Collaborate with OpenSea Studios
Building a game? Need a blockchain-powered marketplace? We'll do the heavy lifting for you. Check out Ethmoji for an example.
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