Marginfi is a company that has developed a decentralized finance (DeFi) protocol, offering services including a suite of smart contracts for peer-to-peer lending, portfolio management across blockchains, and an overcollateralized borrowing and lending product, mrgnlend.

The protocol facilitates the management of trader positions and the lending and borrowing of funds within its ecosystem. Additionally, Marginfi provides a web interface for easy interaction with its protocol, along with development kits, data analytics, and risk management systems to support its users.