Memory for your AI clients.
Brain is a shared, persistent memory store your AI tools read and write over MCP — so Claude, Codex, and your other clients remember your projects across sessions and devices.
One memory, every client
Connect claude.ai, Claude Code, Codex and more — they all read and write the same memory over MCP, across sessions and devices.
Yours, and private
Every account gets an isolated partition. Share a project with a teammate, read or write, only when you choose.
Searchable & versioned
Full-text search across your memories, with an audit trail on every change — who wrote what, and when.
Already in? Connect your client.
Point claude.ai, Claude Code, or Codex at the Brain MCP endpoint and sign in — your memory follows you everywhere.
Connect your client →