An ideal, platform-agnostic AI memory system (an “Open Brain”) should utilize a stack that ensures ownership and interoperability:
- Storage: A database you own, such as Postgres, to prevent vendor lock-in.
- Intelligence: Vector Embeddings (using tools like
PGVector) to enable semantic search—finding information by meaning rather than just keywords. - Interface: The Model Context Protocol (MCP) acts as the universal “USB port,” allowing any AI tool (Claude, Cursor, etc.) to plug into your personal data.
This architecture enables a seamless capture loop where thoughts captured anywhere are instantly searchable and usable by any connected agent.