Mnemosyne OS

local MCP server

Installation

Terminal

claude mcp add mnemosyne-os-github-io -e MNEMO_DEFAULT_VAULT=... -e MNEMO_VAULTS=... -e MNEMO_SDK_PORT=... -- npx -y @mnemosyne_os/mcp

Run in your project folder. Add --scope user to use it everywhere.

Claude Desktop, Cursor & other clients

Add to claude_desktop_config.json or .cursor/mcp.json.

{
  "mcpServers": {
    "mnemosyne-os-github-io": {
      "command": "npx",
      "args": [
        "-y",
        "@mnemosyne_os/mcp"
      ],
      "env": {
        "MNEMO_DEFAULT_VAULT": "...",
        "MNEMO_VAULTS": "...",
        "MNEMO_SDK_PORT": "..."
      }
    }
  }
}

Fill in the environment variables with your own credentials.

Summary

Memory the human governs, on their own machine, plus what other coding agents here wrote.

Questions

Mnemosyne OS is a local MCP server distributed as the npm package @mnemosyne_os/mcp.

Run: claude mcp add mnemosyne-os-github-io -e MNEMO_DEFAULT_VAULT=... -e MNEMO_VAULTS=... -e MNEMO_SDK_PORT=... -- npx -y @mnemosyne_os/mcp

Run: codex mcp add mnemosyne-os-github-io --env MNEMO_DEFAULT_VAULT=... --env MNEMO_VAULTS=... --env MNEMO_SDK_PORT=... -- npx -y @mnemosyne_os/mcp

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