mcp-neo4j-data-modeling 0.1.0

A simple Neo4j MCP server for creating graph data models.

🔍📊 Neo4j Data Modeling MCP Server

🌟 Overview

A Model Context Protocol (MCP) server implementation that provides tools for creating, visualizing, and managing Neo4j graph data models. This server enables you to define nodes, relationships, and properties to design graph database schemas that can be visualized interactively.

🧩 Components

📦 Resources

The server provides these resources:

• resource://init

  • Create an empty data model to start with
  • Returns: Empty DataModel with no nodes or relationships

• resource://schema/node

  • Get the JSON schema for a Node object
  • Returns: JSON schema defining the structure of a Node

• resource://schema/relationship

  • Get the JSON schema for a Relationship object
  • Returns: JSON schema defining the structure of a Relationship

• resource://schema/property

  • Get the JSON schema for a Property object
  • Returns: JSON schema defining the structure of a Property

• resource://schema/data_model

  • Get the JSON schema for a DataModel object
  • Returns: JSON schema defining the structure of a DataModel

🛠️ Tools

The server offers these core tools:

✅ Validation Tools

• validate_node

  • Validate a single node structure
  • Input:
    • node (Node): The node to validate
  • Returns: True if valid, raises ValueError if invalid

• validate_relationship

  • Validate a single relationship structure
  • Input:
    • relationship (Relationship): The relationship to validate
  • Returns: True if valid, raises ValueError if invalid

• validate_data_model

  • Validate the entire data model structure
  • Input:
    • data_model (DataModel): The data model to validate
  • Returns: True if valid, raises ValueError if invalid

👁️ Visualization Tools

• visualize_data_model
  • Generate and open an interactive visualization of the data model in your browser
  • Input:
    • data_model (DataModel): The data model to visualize
  • Returns: None (opens browser visualization)

🔄 Import/Export Tools

These tools provide integration with Arrows - a graph drawing web application for creating detailed Neo4j data models with an intuitive visual interface.

• load_from_arrows_json

  • Load a data model from Arrows app JSON format
  • Input:
    • arrows_data_model_dict (dict): JSON dictionary from Arrows app export
  • Returns: DataModel object

• export_to_arrows_json

  • Export a data model to Arrows app JSON format
  • Input:
    • data_model (DataModel): The data model to export
  • Returns: JSON string compatible with Arrows app

🔧 Usage with Claude Desktop

💾 Released Package

Can be found on PyPi https://pypi.org/project/mcp-neo4j-data-modeling/

Add the server to your claude_desktop_config.json with the transport method specified:

"mcpServers": {
  "neo4j-data-modeling": {
    "command": "uvx",
    "args": [ "mcp-neo4j-data-modeling@0.1.0", "--transport", "stdio" ]
  }
}

🐳 Using with Docker

"mcpServers": {
  "neo4j-data-modeling": {
    "command": "docker",
    "args": [
      "run",
      "--rm",
      "mcp/neo4j-data-modeling:latest"
    ]
  }
}

🚀 Development

📦 Prerequisites

1. Install uv (Universal Virtualenv):

# Using pip
pip install uv

# Using Homebrew on macOS
brew install uv

# Using cargo (Rust package manager)
cargo install uv

2. Clone the repository and set up development environment:

# Clone the repository
git clone https://github.com/yourusername/mcp-neo4j-data-modeling.git
cd mcp-neo4j-data-modeling

# Create and activate virtual environment using uv
uv venv
source .venv/bin/activate  # On Unix/macOS
.venv\Scripts\activate     # On Windows

# Install dependencies including dev dependencies
uv pip install -e ".[dev]"

3. Run Tests

./test.sh

🔧 Development Configuration

# Add the server to your claude_desktop_config.json
"mcpServers": {
  "neo4j-data-modeling": {
    "command": "uv",
    "args": [
      "--directory", "path_to_repo/src",
      "run", "mcp-neo4j-data-modeling", "--transport", "stdio"]
  }
}

🐳 Docker

Build and run the Docker container:

# Build the image
docker build -t mcp/neo4j-data-modeling:latest .

# Run the container
docker run mcp/neo4j-data-modeling:latest

📄 License

This MCP server is licensed under the MIT License. This means you are free to use, modify, and distribute the software, subject to the terms and conditions of the MIT License. For more details, please see the LICENSE file in the project repository.