# Volume use cases

As DeFi continues to gain more use cases and traction, the ability to accurately compute and analyze DeFi volumes has become paramount. It encompasses a wide array of DeFi activities, including *lending, borrowing, trading, yield farming, liquidity provision, and more*.&#x20;

DeFi projects often use rewards systems to attract liquidity and users. These systems rely on accurate volume computations to design and adjust incentive structures effectively. Higher volumes can lead to more attractive rewards. That’s why rewards are distributed based on user participation and contribution to the network. DeFi volume data assists in fair and transparent distribution mechanisms, ensuring that users are rewarded proportionally to their activity.&#x20;

Computing Dex volumes on-chain is mostly impossible, so usually it is done off-chain via relayer or an oracle in a centralized way. **Maru** has released provable volumes computations using a cutting edge zero knowledge proof system.
