You explain your project to one AI. Then you open another and explain it all over again — none of them share a memory. AO2 Memory is a shared memory layer. It's an MCP server you connect to whatever you use — Claude, ChatGPT, OpenClaw — so they all read and write to the same place. Tell one agent something, and the rest already know. And you stay in control: see what every agent did, roll back any change, and revoke access anytime.