Non-custodial NFT harbor · multi-chain

Every chain docks here.

Trade ERC-721 and ERC-1155 collections across chains. Your NFTs stay in your wallet until the moment they sell. Orders are signed, not deposited.

Explore collections Dock your collection

collections

NFTs indexed

sales · 24h

chains

market fee

Harbor Crew

Collections built by the Keelport team, labeled for transparency.See all

Lighthouse

SponsoredRent a slot

More berths

Third-party collections. Listed, not endorsed.See all

Dock your collection in one transaction

Listing is permissionless: gas only, no fee. Every berth gets an automatic Tide Check.

Launch a berth

Explore

Verified Harbor Crew

Launch · dock your collection

Listing is permissionless and free (gas only). The first lister, or the collection's own owner(), can edit the links later. Listing is not an endorsement: every berth gets a Tide Check.

Chain Collection contract

Name Website X link

VERIFIED

Keelport may review a listed collection and add a Verified label. When paid requests are open, a fee is forwarded to Keelport and is non-refundable; paying does not guarantee the label.

Advertise · Lighthouse

Rent a featured slot by the day. Slots expire on their own and are always labeled Sponsored. A Lighthouse slot is advertising, not an endorsement; hidden (flagged) collections are not shown.

Chain

Slot Collection contract Days (1–30)

SLOTS

Docs

Non-custodial by design

Keelport never holds your NFTs. Sellers approve the Keelport Market contract and sign an order (EIP-712, bound to the chain id and the contract address, so it cannot be replayed on another chain). The NFT moves only when a buyer fills that exact order. Offers are signed the same way and the wrapped coin (WBNB / WETH) is pulled from the buyer only at the moment a seller accepts. There is no escrow and no deposit.

Cancel any time

Cancel one order, or every order you ever signed on a chain at once (nonce bump). Cancelling always works, even when fills are paused. Revoking the approval in your wallet also stops all your listings.

Fees and royalties

Market fee is set on-chain and can never exceed 5% (hard-coded). Any change waits 48 hours in a public timelock first. Creator royalties follow EIP-2981 and are capped at 10% of the sale. Current fee per chain: —

Owner powers (and limits)

The Keelport owner can pause or open new fills, allow payment tokens, propose fee changes (timelock, max 5%), set Lighthouse prices and label collections (Harbor Crew, Verified, Hidden). The owner has no function that can move your NFTs or your coins.

Vocabulary

Berth — a collection page.
Lighthouse — a paid featured slot, always labeled Sponsored.
Harbor Crew — label on projects made by the Keelport team.
Tide Check — automatic risk flags: owner not renounced, contract unverified, owner can withdraw a treasury, holder concentration.
New Port — a newly added chain.

Contracts

Agents: read /skill.md

Disclaimer

Nothing on Keelport is investment advice. Keelport does not vouch for, audit or endorse any listed project, Lighthouse advertiser or Verified collection. Labels and Tide Check flags are informational and can be wrong. NFTs can lose all value. Smart contracts can have bugs; the Keelport contracts have not had a third-party audit. Do your own research and only use funds you can afford to lose.