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Decentralized exchange

Bluefin

The largest exchange on Sui, with spot pools and a perpetuals order book side by side.

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By the Orca Crypto teamUpdated 2026-09-28How we check this5 min read
The short answer

The largest exchange on Sui, with spot pools and a perpetuals order book side by side. Bluefin started on Arbitrum in 2023 and moved to Sui for the speed. It matches orders off chain and settles them onchain, which gives it order book behavior with self custody, and it runs concentrated liquidity pools for ordinary spot swaps alongside that.

What it is

Bluefin started on Arbitrum in 2023 and moved to Sui for the speed. It matches orders off chain and settles them onchain, which gives it order book behavior with self custody, and it runs concentrated liquidity pools for ordinary spot swaps alongside that.

PropertyDetail
Launched2023
ModelConcentrated liquidity spot, plus an off chain order book with onchain settlement for perpetuals
ChainsSui
CustodySelf custody. Your funds never leave your wallet until the swap executes
Account requiredNone. You connect a wallet

The BLUE token

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Prices as of September 29, 2026, replaced by live figures as the page loads. Prices move constantly and are for orientation only.

A governance token is not the exchange, and holding one is not required to use the other.

Using it safely

  1. Reach it from a bookmark

    Type the address or use a saved bookmark. Fake front ends served through search ads are the single most common way wallets get drained.

  2. Check the network

    Your wallet and the site must be on the same chain, or your balance will appear to be zero.

  3. Verify the token contract

    For anything other than a household name, paste the contract address from an official source rather than picking from a search list.

  4. Set slippage tight

    0.1 to 0.5 percent on major pairs. If a token demands far more, that is information about the token.

  5. Approve the exact amount

    Avoid unlimited approvals where the interface lets you choose. Review old ones periodically.

  6. Read the transaction on an explorer

    Every time, at first. It builds the instinct that catches problems later.

What it costs

Two separate costs apply to every swap, and beginners often only notice one.

  • The pool fee, typically 0.01 to 1 percent depending on the pair and the tier. This goes to liquidity providers.
  • Network gas, which depends entirely on which chain you are on and has nothing to do with the DEX.

On Ethereum mainnet gas usually dominates. On Base or Solana it effectively disappears, and the pool fee is the whole cost.

Honest risk assessment

  • Smart contract risk. Even audited, heavily used contracts have been exploited before.
  • You are responsible for every approval you grant, and they persist until revoked.
  • There is no support, no reversal and no recovery for a mistake.
  • Prices come from pools, so thin liquidity means severe price impact on larger trades.
  • Anyone can list any token. A matching name and logo proves nothing.

Other places to make the same trade

Routing differs, fees differ, and the pool you get filled from differs. These cover the same ground.

Where to go next

First time on Bluefin?

We can walk through it live, on a cheap network, so the first swap you do alone is actually your second.

Common questions

What is Bluefin for?
It is the main exchange on Sui, offering spot pools alongside a perpetuals order book, which is an unusual combination in one venue.
Do I need a Sui wallet?
Yes. Sui is not EVM compatible, so an Ethereum wallet will not connect. Slush and Suiet are the common choices, and Bluefin’s own mobile wallet, Vera, has the exchange built in.
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