Sonne Finance operates an EVM-compatible, permissionless, open-source lending protocol providing decentralized peer-to-peer financial services. Users can deposit supported assets into money markets, use them as collateral, and borrow other supported assets. The platform also offers SONNE token staking, liquidity generation, and claims functionality. The website states that Sonne Finance was recently exploited and advises users not to interact with it; the markets page currently shows zero total value locked, supply, and borrow activity.