Mnemosyne OS is a Model Context Protocol (MCP) server: Persistent memory for AI agents, governed by the human and stored on their own machine. Because it speaks the Model Context Protocol, AI assistants can use Mnemosyne OS as a set of callable tools instead of you copy-pasting between apps.
It runs locally: the npm package @mnemosyne_os/mcp speaks MCP over stdio on your machine. No credentials are required — it works out of the box. The current release is v1.4.5, with source at Mnemosyne-OS/Mnemosyne-Neural-OS on GitHub, where it has earned 11 stars.
On mcp.site, Mnemosyne OS sits in the AI & Agents category. Any MCP client can use it — Claude Desktop, Claude Code, Cursor, VS Code, Windsurf, Zed among them — via the install snippets below. If you maintain Mnemosyne OS for Mnemosyne-OS, claim this listing to verify ownership, earn the Verified badge, and keep the details current.