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ERC-20 Fee Payment
Caldera chains offer a unique feature that sets them apart from other Optimistic Rollups: the ability to pay for transaction fees using ERC-20 tokens. This means that, unlike other rollups, users no longer need to hold a separate currency, such as ETH or Matic, in order to pay for gas fees. Instead, the operator of the Caldera chain can choose to enable a specific ERC-20 token for gas fee payment. This can give additional utility to a project's utility or governance token, making it more valuable and useful for users. This feature not only simplifies the user experience but also eliminates the need for users to hold multiple currencies, making the overall process more seamless and efficient. Overall, this feature is a game-changer for projects looking to provide a better user experience and increase the value of their tokens.