Memory MCP Server

Memory MCP Server is an official Model Context Protocol server that equips AI assistants with long-term, persistent memory. By structuring knowledge into an explicit knowledge graph of entities, relations, and observations, it solves context loss between conversations in Claude Desktop, Cursor, and custom agentic frameworks.

Core Capabilities

• Knowledge Graph Architecture: Represents user preferences, project conventions, and domain facts as distinct entities connected by semantic relations.
• Cross-Session Persistence: Automatically stores and recalls context across sessions in a local JSONL-backed graph file (memory.json).
• Granular Memory Operations: Supports creating entities, building directed relations between concepts, appending timestamped observations, and querying subgraphs via keyword search.
• Privacy-First Storage: Runs 100% locally on your file system without syncing private data to cloud memory providers.

Claude Desktop Configuration

{
  "mcpServers": {
    "memory": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-memory"
      ]
    }
  }
}

Frequently Asked Questions