OpenSea
NFT and token marketplace across 27 chains, operated by Ozone Networks, Inc.
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OpenSea key facts
| Category | NFT marketplace |
|---|---|
| Chains | Ethereum, Solana, Base and 24 more |
| Platforms | Web, API |
| Custody | Non-custodial |
| Fees | 2.5% marketplace fee plus collection creator fees |
| Company | Ozone Networks, Inc. (Miami, Florida) |
| Chains | 27 chains |
What is OpenSea?
OpenSea is an NFT and token marketplace operated by Ozone Networks, Inc., headquartered in Miami, Florida. It lists 27 supported chains, including Ethereum, Solana and Base. The marketplace fee is 2.5%, and creator fees set on a collection are added to orders.
OpenSea usage
From DefiLlama (fees users paid), updated Sep 26, 2026.
OpenSea alternatives
Other projects people compare with OpenSea.
Ethereum NFT marketplace and aggregator for active traders, with the Blend lending protocol and BLUR token.
NFT marketplace that started on Solana, with a 2% transaction fee and optional creator royalties.
Solana NFT marketplace with an NFT AMM, collection-wide bids and enforced royalties.
Multichain NFT marketplace and NFT API, operated since June 2026 by Panama-based Gahinga Inc.
Ethereum NFT marketplace that pays protocol fees back to users as rewards, with the LOOKS token.
OpenSea pros and cons
- Supports 27 chains
- 2.5% marketplace fee documented for developers
- Collection fees exposed through a public API
- 2.5% marketplace fee on sales
- Solana support is limited to token swaps
- Creator fees on some collections raise total cost
OpenSea FAQ
What is OpenSea?
OpenSea is an NFT and token marketplace operated by Ozone Networks, Inc., headquartered in Miami, Florida. It lists 27 supported chains, including Ethereum, Solana and Base. The marketplace fee is 2.5%, and creator fees set on a collection are added to orders.
Which chains does OpenSea support?
Ethereum, Solana, Base and 24 more.
How much does OpenSea cost?
2.5% marketplace fee plus collection creator fees, according to OpenSea’s own page (checked Sep 26, 2026).
How much do users pay OpenSea in fees?
$3.2M over the last 30 days, according to DefiLlama on Sep 26, 2026.
Does OpenSea hold my funds?
No. OpenSea is non-custodial: you keep your funds in your own wallet and sign each transaction.
Sources
How this page works
Sources: OpenSea: official site, OpenSea: OpenSea fees, OpenSea: Homepage. Data as of Sep 26, 2026.
Not affiliated with any project listed. Educational content, not financial advice.