BiFi (Bifrost Finance) is a decentralized Finance (DeFi) project based on Bifrost multi-chain technology. Bifrost makes BiFi more scalable and transparent than other DeFi services. BiFi connects Bitcoin directly to other blockchain networks, expanding the DeFi ecosystem that is currently limited to Ethereum. We provide ETH, USDT and BTC lending services, and will support more advanced derivative investment products in the future.