Caldera This is an infrastructure platform that provides Rollup-as-a-Service (RaaS). Its purpose is to facilitate developers in launching custom rollups on the blockchain, especially in the Ethereum Layer-2 ecosystem. These rollups help improve scalability, speed, and cost efficiency of transactions.
ERA token ($ERA): This is the fuel or native token that powers the Caldera platform. Its role is very important in the ecosystem, where this token is used to pay for transaction fees and services within the Caldera network, including interactions between rollups.
Governance Gives voting rights to its holders to participate in important decision-making regarding the direction of protocol development.
Staking: Used by validators to secure the network and validate transactions, where they will receive rewards.
In simple terms, if Caldera is the "engine" or "platform", then the ERA token is the "fuel" that makes it run. This relationship is similar to Ethereum as a platform and ETH as the native token that powers its network.