Bifrost is a multichain middleware platform that enables developers to create Decentralized Applications (DApps) on top of multiple protocols. Not restrained to a single blockchain, Bifrost creates a new environment where developers can combine the best protocols to develop substantially more scalable and flexible DApps. BiFi is a multichain DeFi platform built on Bifrost that connects directly to Bitcoin and other blockchains, thereby expanding the DeFi ecosystem currently limited to Ethereum.