Start with the network and asset
Select Ethereum as the source and Optimism as the destination, then choose a supported token. The route should identify the asset expected on Optimism.

A practical guide to supported Ethereum-to-Optimism cross-chain routes.
Select Ethereum as the source and Optimism as the destination, then choose a supported token. The route should identify the asset expected on Optimism.
Review gas, quoted output and transaction steps. An ERC-20 transfer may require an approval before the source transaction can be completed.
Optimism has its own network state and gas environment, so the destination balance must be checked on Optimism rather than Ethereum.
Do not rely on a static transfer time or fee. Use the live route and confirm the destination chain before signing.