Memory (reference server)

Claude normally forgets everything when a session ends. This small server gives it a local notebook, stored as a file on your computer, where it can save facts and look them up again next time.

It stores a simple web of entities (a client, a project, a tool) and observations about each. Tell Claude to "remember that the Acme site deploys on Fridays" and it will still know in a month.

It is a reference implementation from the MCP project, meant to show what is possible, so it is basic. For most people that is exactly enough.

• Remember people, projects and preferences you mention
• Record relationships, like which client owns which site
• Search what it has remembered in later sessions
• Update or forget facts when you tell it to

Open your terminal in the project folder and run:

claude mcp add memory -- npx -y @modelcontextprotocol/server-memory

Or add this to your project's .mcp.json:

{
  "mcpServers": {
    "memory": {
      "command": "npx",
      "args": ["-y", "@modelcontextprotocol/server-memory"],
      "env": { "MEMORY_FILE_PATH": "/path/to/memory.jsonl" }
    }
  }
}

Anyone who is tired of re-explaining their setup at the start of every session.

• Remembering client details
• Keeping project context
• Personal preferences