Add the Neo4j MCP server to Claude Code

Config last verified Jun 1, 2026

The exact config to run Neo4j in Claude Code — paste it in, restart, and the tools load.

Prerequisites

Claude Code installed.
NEO4J_URI — Connection URI for the Neo4j instance, e.g. bolt://localhost:7687.
NEO4J_USERNAME — Neo4j username used to authenticate.
NEO4J_PASSWORD — Password for the Neo4j user.

Setup

1. Open `~/.claude.json`

2. Add this configuration

Add to ~/.claude.json

~/.claude.json

json

{
  "mcpServers": {
    "neo4j": {
      "command": "python",
      "args": [
        "-m",
        "neo4j_mcp_server"
      ],
      "env": {
        "NEO4J_URI": "<NEO4J_URI>",
        "NEO4J_USERNAME": "<NEO4J_USERNAME>",
        "NEO4J_PASSWORD": "<NEO4J_PASSWORD>"
      }
    }
  }
}

Or via CLI

bash

claude mcp add neo4j -- python -m neo4j_mcp_server

3. Restart Claude Code and confirm the Neo4j tools load.

Gotchas

Claude Code stores MCP servers under an "mcpServers" object in ~/.claude.json. It also reads a project-scoped .mcp.json and supports adding servers from the command line with "claude mcp add". Each entry must declare either a "type" or a "command"; Claude Code refuses an entry that has neither. Remote servers connect natively over Streamable HTTP with OAuth.

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