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A collection page shows more than our own listings. Three other marketplaces are merged in so the floor you’re looking at is the actual floor. They’re merged in sequence, so whichever is cheapest wins regardless of where it’s listed.

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How it works, briefly

A background worker walks through collections fetching their listings and caching them. Loading a page reads that cache rather than calling out to marketplaces live — which is why a page load is fast and a slow marketplace can’t hold up your checkout. The trade is that listings can be a few minutes old. We’d rather show you an eight-minute-old listing than nothing.

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Magic Eden

The longest-running of the three. A couple of things worth knowing:
  • Pool listings can be bought, same as ordinary ones.
  • A listing that’s just sold can linger briefly before it clears.

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Tensor

Added August 2026, Solana only.
Tensor’s API includes other marketplaces’ listings. A lot of what it returns is actually Magic Eden inventory.We filter those out, because they already reach you through the Magic Eden overlay and relabelling them as Tensor would be misleading.So a collection showing no Tensor listings is normal, not broken. For some collections the entire Tensor book is Magic Eden.
Tensor also rate-limits us to one request a second, shared between the website and the background worker — so Tensor data refreshes more slowly than the rest.

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OpenSea

EVM chains. Two long-standing quirks we work around: their listing endpoints can return NFTs from other collections partway through a page, and collection matching sticks once made — so we only set it from a confirmed match rather than a guess. OpenSea covers every EVM chain we support, Robinhood Chain included.

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What it costs to buy one

2% on top, included in the price you’re shown before you confirm. It’s collected as a separate transfer because we can’t modify the purchase transactions these marketplaces hand us. Magic Eden co-signs theirs; Tensor’s can’t take extra instructions. Adding anything to either breaks it.

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Why a collection might show nothing from outside

A new collection doesn’t exist on Magic Eden or Tensor yet, so there’s nothing to match against. We retry periodically and it links up on its own.
Common with Tensor. Those get filtered as duplicates of what you’re already seeing.
Each run refreshes a limited number of collections, so a big roster means a longer wait for any individual one.