Neo4j MCP Server

A Neo4j MCP server implementation for managing graph database operations through the Model Context Protocol.

🔌 Compatible with both Cursor and Claude Desktop!

Quick Start

You can run the server directly using npx:

Installation

If you prefer to install the package globally:

Then run it:

Environment Variables

You can provide the Neo4j connection details in two ways:

1. Using a single connection string:
   NEO4J_CONNECTION=<uri>,<user>,<password>
2. Using separate environment variables:
   NEO4J_URI=<your-uri> NEO4J_USER=<your-user> NEO4J_PASSWORD=<your-password>

You can also use a .env file in your project root:

Configuration ⚙️

Configuring Cursor 🖥️

To set up the Neo4j MCP server in Cursor:

1. Open Cursor Settings
2. Navigate to Features > MCP Servers
3. Click on the "+ Add New MCP Server" button
4. Fill out the following information:
   • Name: Enter a nickname for the server (e.g., "neo4j-mcp")
   • Type: Select "command" as the type
   • Command: Enter the command to run the server:
   env=NEO4J_URI=your-neo4j-uri,NEO4J_USER=your-neo4j-user,NEO4J_PASSWORD=your-neo4j-password npx -y @neobarrientos/neo4j_mcpserver

   Important: Replace the credentials with your actual Neo4j database credentials.

Available Tools 🛠️

neo4j-query

Execute Cypher queries against your Neo4j database.

Example usage in Cursor:

Troubleshooting 🔧

If you encounter issues:

1. Verify Neo4j Credentials
   • Check that your Neo4j URI, username, and password are correct
   • Ensure your Neo4j database is accessible
2. Path Issues
   • Ensure there are no spaces in the installation path
   • Use forward slashes (/) in paths
3. Tool Detection Issues
   • Try restarting Cursor
   • Verify the server is running (check Cursor's MCP server list)
   • Check that environment variables are properly set

Development 👩‍💻

To run locally:

License

ISC