MCP GraphDB

Name: MCP GraphDB
Author: keonchennl

@keonchennl

About MCP GraphDB

A Model Context Protocol server that provides read only access to graphs in a certain repository in Ontotext GraphDB. This server enables LLMs to execute SPARQL queries.

#mcp-graphdb #sparql #graph-database

Config

Add this server to your MCP-compatible client using the configuration below.

{
  "mcpServers": {
    "graphdb": {
      "command": "node",
      "args": [
        "/path/to/mcp-server-graphdb/dist/index.js"
      ],
      "env": {
        "GRAPHDB_ENDPOINT": "http://localhost:7200",
        "GRAPHDB_REPOSITORY": "myRepository",
        "GRAPHDB_USERNAME": "username",
        "GRAPHDB_PASSWORD": "password"
      }
    }
  }
}

Tools

\`query\` (string): The SPARQL query to execute

Overview

What is MCP GraphDB?

A Model Context Protocol server that provides read-only access to Ontotext GraphDB, enabling LLMs to explore RDF graphs and execute SPARQL queries.

How to use MCP GraphDB?

Install dependencies, build with yarn build, then configure via environment variables (GRAPHDB_ENDPOINT, GRAPHDB_REPOSITORY, GRAPHDB_USERNAME, GRAPHDB_PASSWORD) or pass endpoint and repository as command-line arguments. Use with Claude Desktop by adding a configuration entry to claude_desktop_config.json.

Key features of MCP GraphDB

Read-only SPARQL query execution
List all graphs in the repository
View RDF classes with instance counts
List predicates with usage counts
Access repository statistics (subjects, triples)
Retrieve sample triples from graphs

Use cases of MCP GraphDB

Explore RDF knowledge graphs via natural language prompts from an LLM
Query class and predicate statistics to understand data distribution
Extract sample data from specific graphs for validation
Enable

Comments

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