Acala Dollar (ACALAUSD) is a decentralized stablecoin pegged to the US Dollar, designed for the Polkadot and Kusama ecosystems. It facilitates stable, secure transactions and DeFi activities by being minted through a collateralized process involving various assets. Developed by the Acala Network, ACALAUSD plays a critical role in the growth and innovation of the DeFi landscape within these ecosystems.