Power your marketplace using OpenSea, blockchain's largest marketplace

With over 1 million digital assets, 1,000 ETH in transactions, and 50+ asset types, OpenSea is your one-stop shop for creating your own marketplace for your project. Whether you're creating a shop for your game items, collectibles, or another type of asset, we'll guide you through the entire process.


Open your OpenSea marketplace

Let the world trade your items by opening your own storefront and marketplace on OpenSea. That's right; it's free!

Customize your very own OpenSea storefront

You can finally open a beautiful, customizable marketplace for your items with your own dedicated URL. Link back to items on your site, and customize your banners and project description.

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 fee.

Get stats & insights

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

Hold your initial item sale

Sell the items in your game to an initial user base of early adopters

Get Started
opensea get listed

Top Storefronts on OpenSea

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opensea api

Build your own store powered by OpenSea.js

Buy & sell orders

Get, create, cancel, & fulfill buy orders (buyer-initiated offers)
Get, create, cancel, & fulfill sell orders (owner-initiated auctions)


Access the OpenSea API (see below) with a JavaScript wrapper, allowing you to search assets, collections, users and more!

View Developer's Kit

Fetch assets with our API & More

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


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


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


Get usernames and profile details for account addresses

View API Reference
opensea api

Trusted by Top Wallet & Websites

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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!

Contact us

Read our FAQ's

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

Read FAQ's

Ask a question

Visit our discussion board to browse recently asked questions, and ask us one.

Ask a question

Chat with us

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

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