$ADA ADA is the native cryptocurrency of the Cardano blockchain, a proof-of-stake platform focused on scalability, sustainability, and academic research. Named after Ada Lovelace, a 19th-century mathematician, ADA is used for transactions, staking, and governance within the Cardano ecosystem. It enables users to participate in network operations and earn rewards. Cardano distinguishes itself with a layered architecture and peer-reviewed development process. ADA has gained popularity for its energy-efficient model and potential for decentralized finance (DeFi) applications. Despite delays in development, ADA remains a top cryptocurrency by market cap, supported by a strong community and long-term vision for blockchain innovation.