Basic Memory

Basic Memory is an open-source tool and MCP (Model Context Protocol) server that enables persistent, shared memory for AI agents and human users across tools like Claude, ChatGPT, Codex, and Cursor. It stores user knowledge as Markdown files, supports semantic search, knowledge graph linking, bidirectional editing between humans and AI, and can sync data across devices either locally (free, Python-based) or via a cloud service ($15/month). Designed for teams and power users needing unified, persistent, and searchable AI-augmented note-taking and context sharing.