How are fees charged on the Optimistic Ethereum network?

Optimistic Ethereum (ETH) is Ethereum on the Optimistic Ethereum network, which is its native coin. When you perform transactions on the Optimistic Ethereum network, the fees are charged in Optimistic Ethereum (ETH) rather than the specific token you are transferring.

To top up the balance in your Optimistic Ethereum (ETH) wallet, you can purchase ETH from an exchange and then transfer the tokens to your wallet on the Optimistic Ethereum network.