M3 Memory for Cursor

io.github.skynetcmd/m3-memory

Local-first memory — 100+ tools, 99.2% LongMemEval-S retrieval@10, hybrid search, GDPR, no cloud.

client:Cursor transport:stdio runtime:pypi

Install M3 Memory in Cursor

~/.cursor/mcp.json · windows: %USERPROFILE%\.cursor\mcp.json

{
  "mcpServers": {
    "m3-memory": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "m3-memory"
      ]
    }
  }
}

Use .cursor/mcp.json in a project root instead to scope it to that project. Cursor merges both. Cursor docs