Swap SUI on Solana to WETH on Optimism

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What you need to know

Move from a Solana account into Optimism EVM

Solana uses Solana accounts and SOL for source fees, while Optimism uses an EVM 0x account and ETH for destination gas. Confirm the destination token contract and do not paste a Solana address into the EVM destination field. SUI is read from its Solana mint or native account, while WETH arrives at the quoted Optimism native or contract representation.

SUI mint and SOL fee checks

Base58-encoded Solana account address SOL is the native gas asset for Solana. A Solana source signs over accounts or token accounts, identifies SPL assets by mint, and spends SOL for transaction fees. Native SUI is selected from Sui coin objects and can fund gas; tokenized SUI outside Sui does not use the object model. The mint/account selected by the quote must match the source wallet balance.

Optimism contract and 0x receiving checks

EVM 0x account address ETH is the native gas asset for Optimism. An OP Mainnet receipt belongs to the OP Stack L2 and needs ETH on that network for later activity; it is not an Ethereum L1 balance. WETH arrives as a token contract balance. It may need an explicit unwrap before becoming native ETH and cannot itself pay transaction gas. A Solana address cannot receive this EVM-side output.

WETH wrapped-token output check

WETH is a contract wrapper for ETH. It can be transferred as a token but cannot replace the native gas balance required by the network. On this route WETH is the destination token on Optimism. Its token balance, approvals, and contract transfer behavior are separate from the native coin used for network gas.

Mistakes specific to SUI Solana to WETH Optimism

Route-specific mistakes include sending on a network other than Solana; using a destination that is not valid for Optimism; running out of SOL before the source transaction is submitted; assuming solana and evm addresses are interchangeable; treating a wrapped token as the native gas asset. A Solana source signs over accounts or token accounts, identifies SPL assets by mint, and spends SOL for transaction fees. Native SUI is selected from Sui coin objects and can fund gas; tokenized SUI outside Sui does not use the object model. An OP Mainnet receipt belongs to the OP Stack L2 and needs ETH on that network for later activity; it is not an Ethereum L1 balance. WETH arrives as a token contract balance. It may need an explicit unwrap before becoming native ETH and cannot itself pay transaction gas.

SUI input identity and handling

Sui is classified as a native asset for this route. SUI uses a network-specific contract asset on Solana. The recorded Solana representation uses 8 decimal places. Native SUI is selected from Sui coin objects and can fund gas; tokenized SUI outside Sui does not use the object model.

WETH output identity and receiving

WETH is classified as a wrapped asset for this route. WETH uses a wrapped contract asset on Optimism. The recorded Optimism representation uses 18 decimal places. WETH arrives as a token contract balance. It may need an explicit unwrap before becoming native ETH and cannot itself pay transaction gas.

Private Route for SUI → WETH

Solana account, token, program, signature, and fee activity remain public, and Optimism wallet, token-transfer, contract, log, and gas activity remain public. For this SUI on Solana to WETH on Optimism path, Private Route is intended to reduce the direct visible relationship between activity around the source-side Base58-encoded Solana account address and destination-side EVM 0x account address; it does not hide either chain's public records.

  • Reduces the obvious link between the SUI deposit and WETH receipt
  • Compare standard and Private Route options for Solana → Optimism
  • Shows what remains public on Solana and Optimism before you deposit
Check Private Route availability →

Related routes

Swap SUI on Solana to WETH on Optimism FAQs

Can a Solana address be used for the Optimism output?

No. EVM 0x account address The WETH output belongs to the quoted EVM representation.

What pays gas on each side of this Solana-to-EVM route?

SOL pays source fees on Solana. ETH pays later transactions on Optimism; the delivered WETH does not replace that gas balance unless it is the native asset.

What exactly leaves Solana as SUI?

SUI is a contract representation on Solana with 8 decimals at suifhC9gU1VbJAPYPTBkHJyyyStKGLLYPVDTmPoqbvA. SOL, not SUI, pays gas unless both symbols are the same. A Solana source signs over accounts or token accounts, identifies SPL assets by mint, and spends SOL for transaction fees. Native SUI is selected from Sui coin objects and can fund gas; tokenized SUI outside Sui does not use the object model.

What exactly arrives on Optimism as WETH?

WETH is a contract representation on Optimism with 18 decimals at 0x4200000000000000000000000000000000000006. ETH, not WETH, pays gas unless both symbols are the same. An OP Mainnet receipt belongs to the OP Stack L2 and needs ETH on that network for later activity; it is not an Ethereum L1 balance. WETH arrives as a token contract balance. It may need an explicit unwrap before becoming native ETH and cannot itself pay transaction gas.

Why does the SUI to WETH direction matter?

Native SUI is selected from Sui coin objects and can fund gas; tokenized SUI outside Sui does not use the object model. On receipt, WETH arrives as a token contract balance. It may need an explicit unwrap before becoming native ETH and cannot itself pay transaction gas.

What changes between the source and destination asset roles?

SUI is the deposited native-asset input; WETH is the quoted token output. Source allowance or native-spend rules and destination wallet/representation checks are evaluated separately.

What should be matched before sending SUI?

Native SUI is selected from Sui coin objects and can fund gas; tokenized SUI outside Sui does not use the object model. A Solana source signs over accounts or token accounts, identifies SPL assets by mint, and spends SOL for transaction fees. An OP Mainnet receipt belongs to the OP Stack L2 and needs ETH on that network for later activity; it is not an Ethereum L1 balance. WETH arrives as a token contract balance. It may need an explicit unwrap before becoming native ETH and cannot itself pay transaction gas.

Can I swap SUI on Solana to WETH on OP Mainnet without KYC?

Requirements are checked for the live SUI Solana to WETH OP Mainnet quote. Verification requirements can depend on the provider, amount, jurisdiction, and current route. Sasquatch does not verify this route as universally no-KYC; check the live flow before continuing.

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