Echo

Echo is a portable AI context and memory layer. Today, every AI app keeps your history, preferences, and context siloed inside its own walls — switch tools and you start from zero. Echo unbundles that memory: your context lives in one user-owned store you can grant any app permission to read or write. It's encrypted client-side with AES-256-GCM, anchored by an on-chain registry (a UUPS-upgradeable contract on Filecoin/FVM), and persisted to decentralized storage, so your memory is private, durable, and never the property of a single platform.