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MCP DuckDB Knowledge Graph Memory Server

Source

MCP Memory Server with DuckDB backend

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Overview

MCP DuckDB Knowledge Graph Memory Server is an enhanced version of the original Knowledge Graph Memory Server, utilizing DuckDB as its backend for improved performance and scalability.

To use the server, you can install it via Smithery or manually configure it in your claude_desktop_config.json. You can also run it using Docker for containerized deployment.

  • Utilizes DuckDB for fast query processing and efficient data handling. - Supports complex SQL queries and transaction processing. - Provides fuzzy search capabilities for flexible entity searching. - Maintains data integrity and performance even with large datasets.
  1. Enhancing applications that require efficient memory management and retrieval of knowledge graphs.
  2. Supporting complex queries in AI-driven applications.
  3. Storing and managing large datasets with relational structures.

Add to your AI client

Use these steps to connect MCP DuckDB Knowledge Graph Memory Server in Cursor, Claude, VS Code, and other MCP-compatible apps. The same JSON appears in the Use with menu above for one-click copy.

Cursor

Add this to your .cursor/mcp.json file in your project root, then restart Cursor.

.cursor/mcp.json

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

Claude Desktop

Add this server entry to the mcpServers object in your Claude Desktop config, then restart the app.

~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows)

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

Claude Code

Add this to your project's .mcp.json file. Claude Code will detect it automatically.

.mcp.json (project root)

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

VS Code (Copilot)

Add this to your .vscode/mcp.json file. Requires the GitHub Copilot extension with MCP support enabled.

.vscode/mcp.json

{
  "servers": {
    "mcp-duckdb-memory-server-izumisy": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-mcp-duckdb-memory-server-izumisy"
      ]
    }
  }
}

Windsurf

Add this to your Windsurf MCP config file, then restart Windsurf.

~/.codeium/windsurf/mcp_config.json

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

Cline

Open Cline settings, navigate to MCP Servers, and add this server configuration.

Cline MCP Settings (via UI)

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

FAQ

What is DuckDB?

DuckDB is an embedded analytical database designed for fast query processing and efficient data handling.

How do I install the server?

You can install it via Smithery or manually configure it in your application settings.

Can I run it in a Docker container?

Yes! You can build and run the server using Docker for easy deployment.7:["$","div",null,{"className":"container mx-auto flex flex-col gap-4","children":["$L26","$L27",["$","$L28",null,{"currentProject":{"id":1706,"uuid":"acf93149-51a9-4a12-b4c8-3adfe5f5d091","name":"mcp-duckdb-memory-server","title":"MCP DuckDB Knowledge Graph Memory Server","description":"MCP Memory Server with DuckDB backend","avatar_url":"https://avatars.githubusercontent.com/u/982850?v=4","created_at":"2025-03-05T04:58:32.155Z","updated_at":"2025-03-12T10:20:29.903Z","status":"created","author_name":"IzumiSy","author_avatar_url":"https://avatars.githubusercontent.com/u/982850?v=4","tags":"mcp,duckdb,model-context-protocol,mcp-server","category":"research-and-data","is_featured":false,"sort":1,"url":"https://github.com/IzumiSy/mcp-duckdb-memory-server","target":"_self","content":"$29","summary":"$2a","img_url":"https://github.com/izumisy/mcp-duckdb-memory-server/actions/workflows/test.yml/badge.svg?branch=main","type":null,"metadata":"{\"star\":\"29\",\"license\":\"MIT license\",\"language\":\"TypeScript\",\"is_official\":false,\"latest_commit_time\":\"2025-05-07 16:01:00\"}","user_uuid":null,"tools":null,"sse_url":null,"sse_provider":null,"sse_params":null,"is_official":false,"server_command":null,"server_params":null,"server_config":null,"allow_call":false,"is_innovation":false,"is_dxt":false,"dxt_manifest":null,"dxt_file_url":null,"is_audit":false},"randomProjects":[],"currentServerKey":"$undefined"}]]}]

Research and data