A DeFi staking platform allows users to lock their cryptocurrency assets in smart contracts to earn rewards or interest, typically in the form of additional tokens. Through staking, users contribute to the security and operation of decentralized networks like Ethereum or Polkadot. These platforms enable higher returns compared to traditional savings accounts, while promoting decentralization. DeFi staking platforms also ensure transparency and security, offering users control over their assets while allowing them to participate in governance and protocol upgrades.