Optimism to zkSync Era L2 handoff
This route crosses two L2 execution environments. Optimism settles to ethereum, while zkSync Era settles to ethereum; each side keeps its own gas balance, token contracts, transaction hash, and settlement progress.
Bridge Optimism to zkSync Era
FromOptimism
TozkSync Era
ENTER AMOUNTUSDC / OPTIMISM -> USDC / ZKSYNC ERA
Squatch Guard
Before a deposit order moves forward, Squatch Guard checks the amount, asset, network, and active quote window against the order details.Direction
Optimism → ZKsync Era
Asset
USDC
Source gas
ETH
Destination gas
ETH
How the Sasquatch deposit route works
1. Select the source
Choose the USDC asset and Optimism network you currently hold.
2. Review the route
Check the estimated output, fees, timing, and ZKsync Era destination network.
3. Create the order
Open the live route and follow the exact deposit instructions.
4. Track delivery
Use the receipt and status page until the destination funds arrive.
What you need to know
Optimism deposit-side execution
Optimism is a L2 EVM network in the Ethereum ecosystem. ETH pays source-side network gas on Optimism. EVM 0x account address An OP Mainnet source uses sequenced OP Stack execution and ETH gas; ordinary route processing is not the same as the canonical L2 withdrawal delay.
Select a zkSync Era-compatible output
EVM 0x account address ETH is the native gas asset for zkSync Era. The quote identifies whether the delivered asset is native, contract-based, or bridged.
zkSync Era receipt-side execution
zkSync Era is a L2 EVM network in the Ethereum ecosystem. ETH pays destination-side network gas on zkSync Era. EVM 0x account address A zkSync Era receipt belongs to EraVM account state and uses ETH for later fees; proof settlement to Ethereum remains distinct from L2 delivery.
Optimism to zkSync Era bridge mistakes
Route-specific mistakes include sending on a network other than Optimism; using a destination that is not valid for zkSync Era; running out of ETH before the source transaction is submitted. An OP Mainnet source uses sequenced OP Stack execution and ETH gas; ordinary route processing is not the same as the canonical L2 withdrawal delay. A zkSync Era receipt belongs to EraVM account state and uses ETH for later fees; proof settlement to Ethereum remains distinct from L2 delivery.
Private Route for USDC → USDC
Optimism wallet, token-transfer, contract, log, and gas activity remain public, and ZKsync Era wallet, token-transfer, contract, log, and gas activity remain public. For this USDC on Optimism to USDC on ZKsync Era path, Private Route is intended to reduce the direct visible relationship between activity around the source-side EVM 0x account address and destination-side EVM 0x account address; it does not hide either chain's public records.
- ✓Reduces the obvious link between the USDC deposit and USDC receipt
- ✓Compare standard and Private Route options for Optimism → ZKsync Era
- ✓Shows what remains public on Optimism and ZKsync Era before you deposit
Related routes
Private OP Mainnet to zkSync route explainerPrivacy limits and live availabilityNo-KYC and verification rulesProvider and region requirementsCan a bridge link source and destination wallets?FAQ answerWhat is cross-chain privacy?FAQ answerWhat is a private crypto swap?FAQ answerCan bridge transactions be traced?Privacy researchPrivate bridge security checklistPrivacy researchHow cross-chain transactions are trackedPrivacy research
Optimism to ZKsync Era FAQs
Which asset can travel from Optimism to zkSync Era?
The live route lists assets supported in this direction. Confirm that the selected source representation has an explicit zkSync Era output before depositing.
Which gas balances matter for this bridge?
An OP Mainnet source uses sequenced OP Stack execution and ETH gas; ordinary route processing is not the same as the canonical L2 withdrawal delay. A zkSync Era receipt belongs to EraVM account state and uses ETH for later fees; proof settlement to Ethereum remains distinct from L2 delivery. The bridge output does not automatically fund every later gas need.
What destination address should be used?
EVM 0x account address Do not substitute a Optimism address merely because a wallet displays both networks.
What wrong-direction mistake can prevent delivery?
Sending on a network other than Optimism, selecting a representation not listed by the quote, or entering an address invalid for zkSync Era can prevent normal detection or receipt.
Can I bridge USDC from Optimism to ZKsync Era without KYC?
Requirements are checked for the live USDC Optimism to ZKsync Era 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.