Loyal is a self-custodial agentic finance protocol built on Solana. It allows software agents to carry out routine decentralized finance work on a user's behalf while the user keeps custody of their assets and retains approval over any critical action. Its first product, Loyal Earn, deposits idle funds into established Solana lending markets and rebalances positions as rates change, so a user does not need to monitor markets or move funds manually. Loyal is distributed as a Chrome extension, an Android application and a web application, and its source code is published openly on GitHub.