M3 Memory

M3 Memory is a local-first, privacy-preserving MCP (Model Context Protocol) memory server that equips any compliant AI agent—such as Claude, Gemini CLI, Aider, Cursor, and others—with persistent, structured, and searchable memory across sessions and devices. It exposes 45 MCP tools, including hybrid search (keyword and vector), knowledge graph linking, GDPR management, automatic contradiction handling, multi-agent orchestration, and cross-device memory sync (SQLite, PostgreSQL, ChromaDB). Designed for developers and power users who need agents to remember facts, track decisions, coordinate with other agents, and operate securely offline with no cloud dependency.