DuckDB Knowledge Graph Memory Server - MCP App for ChatGPT, Claude & AI Assistants | MCP App Store

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DuckDB Knowledge Graph Memory Server

Name: DuckDB Knowledge Graph Memory Server
Availability: InStock
Author: izumisy

by izumisy

High-performance knowledge graph memory server using DuckDB for scalable entity and relation storage.

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Works in:claude

Exposes:Tools

View on GitHub Docs

What it does

This server provides a persistent knowledge graph memory for AI agents, allowing them to store and retrieve entities, relations, and observations about users and their environment. By replacing the standard JSON backend with DuckDB, it enables significantly better performance and scalability for large datasets.

Tools

create_entities: Create new entities in the knowledge graph.
create_relations: Establish relationships between existing entities.
add_observations: Store specific facts or observations about an entity.
search_nodes: Perform fuzzy search to retrieve relevant entities and their context.

Installation

Add the following to your claude_desktop_config.json:

{
  "mcpServers": {
    "graph-memory": {
      "command": "npx",
      "args": [
        "-y",
        "@izumisy/mcp-duckdb-memory-server"
      ],
      "env": {
        "MEMORY_FILE_PATH": "/path/to/your/memory.data"
      }
    }
  }
}

Supported hosts

Claude Desktop

Quick install

npx -y @izumisy/mcp-duckdb-memory-server

Information

Pricing: free
Published: 5/15/2026
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Related Apps

Choose your AI client and follow the steps below.

Claude Desktop

{
  "mcpServers": {
    "graph-memory": {
      "command": "npx",
      "args": [
        "-y",
        "@izumisy/mcp-duckdb-memory-server"
      ],
      "env": {
        "MEMORY_FILE_PATH": "/path/to/your/memory.data"
      }
    }
  }
}