KeeperDAO is an on-chain liquidity provider of the DeFi protocol. Users can pool assets and obtain passive income through liquidation, arbitrage and other opportunities in DeFi. When the market fluctuates greatly, the positions in Compound, dYdX, and Maker CDP may face liquidation, because it requires high gas fees and specific strategies, and it is often difficult for individual investors to participate. KeeperDAO is an on-chain participant that can be used to capture on-chain opportunities on Ethereum and is responsible for managing the liquidation, rebalancing and arbitrage of DeFi applications.