OpenSea brings Solana collections on one at a time, so it covers a selected group of established Solana collections rather than every collection on Solana. More are added over time.
Search for the collection by name to check whether it is available today.
You can also search by the collection address. Paste the collection address into search, not the mint address of a single item, because a mint address belongs to one item rather than the whole collection. A creator address or an update authority address does not find a collection either.
If you cannot find it, the collection is not part of the current rollout yet.
Once a collection is included, its items and pages are created automatically, and purchasing, listing, and offers work for it. There is no separate per collection approval after that step.
A few kinds of items appear but have no purchase, listing, or offer options, because of the Solana standard they use rather than the collection they belong to.
Compressed NFTs are supported. You can purchase, list, and make offers on them the same way as any other supported Solana item.
What is supported by standard:
Metaplex legacy NFTs, programmable NFTs, Metaplex Core, and compressed NFTs: purchase, list, item offers, and collection offers.
Token-2022: purchase, item offers, and collection offers. Listing works for plain Token-2022 items only, so an item that keeps a mint authority cannot be listed.
Wen New Standard (WNS): visible and browsable, with no purchase, listing, or offer options.
Plain SPL tokens with no NFT metadata: not supported.
Want a collection considered? Contact our Support team and let us know which collection you are looking for. We cannot promise when or whether a collection will be added.