The most notable feature of the Caldera (ERA) project — which gives it great importance in the Web3 world — is that the ERA token is used as a unified fee currency across all Rollup chains within the Caldera network, making it easier for users and developers to pay fees regardless of the chain their applications or assets are running on.
Any interaction or transfer across the Caldera roll-up network requires a fee, which is automatically paid using the ERA token, making the system simpler and more efficient compared to using separate tokens for each network.
