MCP Neo4j Server

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About MCP Neo4j Server

mcp-neo4j-server

Config

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

{
  "mcpServers": {
    "mcp-neo4j-server": {
      "command": "npx",
      "args": [
        "@alanse/mcp-neo4j"
      ]
    }
  }
}

Tools

Execute Cypher queries on the Neo4j database

Create a new node in the graph database

Create a relationship between two existing nodes

Overview

What is MCP Neo4j Server?

MCP Neo4j Server is an MCP server that integrates Neo4j graph database with Claude Desktop, enabling graph database operations through natural language interactions. It provides tools for querying, creating nodes, and creating relationships via Cypher queries.

How to use MCP Neo4j Server?

Run directly with npx @alanse/mcp-neo4j or add it to your Claude Desktop configuration with environment variables for NEO4J_URI, NEO4J_USERNAME, and NEO4J_PASSWORD. Automatic installation via Smithery is also available.

Key features of MCP Neo4j Server

Execute any Cypher query with parameter support
Create nodes with labels and properties
Create relationships between existing nodes
Returns structured query results
Supports reading, creating, updating, and deleting operations

Use cases of MCP Neo4j Server

Query graph data: "Show me all employees in the Sales department"
Add new nodes: "Add a new person named John Doe who is 30 years old"
Create relationships: "Make John Doe friends with Jane Smith"
Perform complex operations: "Find all products purchased by customers who live in New York"

FAQ from MCP Neo4j Server

What is MCP Neo4j Server?

It is an MCP server that enables natural-language interaction with a Neo4j graph database through Claude Desktop, providing tools for Cypher queries, node creation, and relationship creation.

How do I install MCP Neo4j Server?

You can run it directly with npx @alanse/mcp-neo4j, install via Smithery with npx -y @smithery/cli install @alanse/mcp-neo4j-server --client claude, or clone the repository and build from source.

What environment variables are required?

The server requires NEO4J_URI (default: bolt://localhost:7687), NEO4J_USERNAME (default: neo4j), and NEO4J_PASSWORD (required).

What tools does MCP Neo4j Server provide?

It provides execute_query for any Cypher query, create_node to create nodes with labels and properties, and create_relationship to create relationships between existing nodes.

Can I use MCP Neo4j Server with Claude Desktop?

Yes, add it to your Claude Desktop configuration by specifying npx as the command and setting the required Neo4j environment variables.

Frequently asked questions

What is MCP Neo4j Server?

It is an MCP server that enables natural-language interaction with a Neo4j graph database through Claude Desktop, providing tools for Cypher queries, node creation, and relationship creation.

How do I install MCP Neo4j Server?

You can run it directly with `npx @alanse/mcp-neo4j`, install via Smithery with `npx -y @smithery/cli install @alanse/mcp-neo4j-server --client claude`, or clone the repository and build from source.

What environment variables are required?

The server requires `NEO4J_URI` (default: bolt://localhost:7687), `NEO4J_USERNAME` (default: neo4j), and `NEO4J_PASSWORD` (required).

What tools does MCP Neo4j Server provide?

It provides `execute_query` for any Cypher query, `create_node` to create nodes with labels and properties, and `create_relationship` to create relationships between existing nodes.

Can I use MCP Neo4j Server with Claude Desktop?

Yes, add it to your Claude Desktop configuration by specifying `npx` as the command and setting the required Neo4j environment variables.

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