
OpenSea
OpenSea is a marketplace for NFTs and token trading, enabling users to buy, sell, and discover digital assets.

What is OpenSea?
OpenSea, founded by Devin Finzer and Alex Atallah in 2017, is a decentralized marketplace for the purchase, sale, and trading of NFTs and tokens. Users can buy, collect, trade, and gift NFTs on the marketplace. Developers can run an in-app economy with OpenSea.js, run their own marketplace, and access the OpenSea API for data on sales, listings, bids, and transfers. To date, OpenSea has raised over $427M with their most recent Series C raise capturing $300M from investors including Coatue and Paradigm.
Web3 dapps and developer tools related to OpenSea
Discover blockchain applications that are frequently used with OpenSea.
Developer resources from Alchemy

Solana Agent Kit vs GOAT vs ElizaOS: which framework should you use?
Solana Agent Kit vs GOAT vs ElizaOS compared: Solana-native depth, multi-chain breadth, or full agent runtime. Code examples and a decision framework.

How we designed for scalability on Solana
How we approached scalability when we rebuilt our Solana platform from the ground up — and how we're positioning it for what comes next.
How Solflare delivers fast, reliable Solana analytics to 4M+ users
Learn how Solflare powers advanced Solana analytics for 4M+ users using Alchemy’s high-performance Solana Archive Method for fast, reliable historical data.
OpenSea alternatives
Explore web3 competitors and apps like OpenSea.
App store listings are independently reviewed and written by Alchemy using a combination of inbound submissions, editorial research, public project sources, and third-party directories, including ecosystem data from The Grid under the Open Database License, DefiLlama, DappRadar, Reown, and chain ecosystem pages.

