OpenSea
The widest selection and the safest default for occasional trading
Still the largest catalogue and the venue most collections list on first, with a protocol that keeps assets in your wallet and approvals scoped per order. It lost the professional flow to faster rivals and has been rebuilding since.
In its favour
- Largest collection catalogue across multiple chains
- Seaport protocol keeps custody with the user and scopes approvals
- Best tooling for casual buyers and creators
Against it
- Professional trading volume has migrated to competitors
- Royalty policy has shifted repeatedly, confusing creators
- Launched2017
- ChainsEthereum, Solana, Base and others
- CustodyAssets stay in user wallet
The weighted mean of the 4 axes below — each read from the fact printed beside it.
- Strongest
- Coverage9.4
- Weakest
- Liquidity8.4
Scorecard — and what it was read from
- Custody & approvals 9.0
- Uses the Seaport protocol: assets stay in the user's wallet and each order carries its own scoped approval, with approvals listed and revocable.
- Fee clarity 8.6
- Fee history is public and volatile: 2.5% originally, cut to 0.5%, a zero-fee promotion around the SEA token launch, and 1% since September 2025. Royalty policy also changed more than once between 2022 and 2024, with current terms published per collection.
- Liquidity 8.4
- Largest catalogue by collection count with sales verifiable on-chain; professional flow left for Blur in 2023, and share recovered sharply after the SEA token announcement in early 2025.
- Coverage 9.4
- Supports ERC-721 and ERC-1155 across Ethereum and several other chains, plus Solana.