OpenSea

Build your own marketplace in minutes

OpenSea provides a one-stop shop for creating your own customizable marketplace for your ERC721 or non-fungible token (NFT) project. Allow users to smoothly buy and sell your items, get custom stats and analytics, and earn revenue when your items get traded.

Guides

Open your own marketplace

Let your users freely trade your ERC721 items by opening your own marketplace on OpenSea.

Customize

You can finally open a beautiful, customizable marketplace on your own domain, fully integrated into your project.

Set your own fee

By opening your your storefront on OpenSea, you can set your own fee on the secondary sales of your items. Whenever a user makes a sale, you earn a commission.

Get stats & insights

Get stats and insights to see how your collectibles are trending.

Hold your crowd sale

Sell the items in your game to an initial user base of early adopters. Even sell off items in your own token.


Get Started
opensea get listed

Top Marketplaces on OpenSea

best cryptomarketplace trusted by cryptogs best cryptomarketplace trusted by cryptovoxels best cryptomarketplace trusted by etherkingdoms best cryptomarketplace trusted by ethmoji best cryptomarketplace trusted by ethtown top cryptomarketplace trusted by warriders
opensea api

Power your in-app economy with OpenSea.js

Buy, sell, & bundle

• Enable users to instantly create auctions (without paying gas) in any currency of their choosing.
• Let users bid directly on items.
• Allow users to create multi-item bundles (even with items from other games!)

Easily pull in data on your assets

• Access the OpenSea API with a JavaScript wrapper, allowing you to search assets, collections, users and more

View Developer's Kit

Fetch assets with our API

OpenSea provides an HTTP API for fetching non-fungible ERC721 assets based on a set of query parameters. Wallets and websites can now display:

Assets

Get assets filtered by a particular collectible type, or belonging to a particular wallet address

Activity

Get events happening on all assets (not just on our marketplace), including sales, listings, bids, transfers, and more

Profile

Get usernames and profile details for account addresses

View API Reference
opensea api

Trusted by top wallets & websites

best cryptomarketplace trusted by balance best cryptomarketplace trusted by cryptogoods best cryptomarketplace trusted by trust wallet
opensea api

Collaborate with OpenSea Studios

OpenSea partners with select teams and brands to bring their ideas to life. Have a big idea? We’d love to learn more. We’ve already created amazing concepts that users love like Ethmoji.io!


Contact us

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Read our FAQ's

Still have questions about how to develop with OpenSea and get started?

Read FAQ's

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Chat with us and other developers in our Discord community in our #developers channel.

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