An MCP configuration that connects an agent to Neo4j services for cloud management, Cypher queries, data modeling, and memory. Neo4j is a graph database that stores connected data as nodes and relationships.

Use it to query Neo4j, design graph data models, manage Neo4j Aura cloud resources, or use the configured Neo4j memory service.

It provides the connection settings and server commands needed to use these Neo4j operations from an agent. Without this configuration, the agent cannot use the declared services.

mcp-neo4j — Plugin for Gemini CLI by neo4j-contrib

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo

git clone --depth 1 https://github.com/neo4j-contrib/mcp-neo4j

Made for: Gemini CLI.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/plugins/neo4j-contrib/mcp-neo4j/gemini-extension/github.svg)](https://agentmods.dev/plugins/neo4j-contrib/mcp-neo4j/gemini-extension)

Your own site

<a href="https://agentmods.dev/plugins/neo4j-contrib/mcp-neo4j/gemini-extension"><img src="https://agentmods.dev/badge/plugins/neo4j-contrib/mcp-neo4j/gemini-extension/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/plugins/neo4j-contrib/mcp-neo4j/gemini-extension"><img src="https://agentmods.dev/badge/plugins/neo4j-contrib/mcp-neo4j/gemini-extension.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session not measured What this adds to a session before it is invoked.

When invoked not measured Not applicable: nothing here is loaded into a session.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Security

Grade A, and why

mcp-neo4j scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

gemini-extension.json · 61 lines

What it actually says

{
  "name": "mcp-neo4j",
  "version": "1.0.1",
  "mcpServers": {
    "mcp-neo4j-cloud-aura-api": {
      "command": "uvx",
      "args": [ "mcp-neo4j-aura-manager" ]
    },
    "mcp-neo4j-cypher": {
      "command": "uvx",
      "args": [ "mcp-neo4j-cypher" ]
    },
    "mcp-neo4j-data-modeling": {
      "command": "uvx",
      "args": [ "mcp-neo4j-data-modeling" ]
    },
    "mcp-neo4j-memory": {
      "command": "uvx",
      "args": [ "mcp-neo4j-memory" ]
    }
  },
  "settings": [
    {
      "name": "NEO4J_URI",
      "description": "Neo4j connection URI (e.g., bolt://localhost:7687 or neo4j+s://xxxx.databases.neo4j.io)",
      "envVar": "NEO4J_URI"
    },
    {
      "name": "NEO4J_USERNAME",
      "description": "Neo4j username",
      "envVar": "NEO4J_USERNAME"
    },
    {
      "name": "NEO4J_PASSWORD",
      "description": "Neo4j password",
      "envVar": "NEO4J_PASSWORD",
      "sensitive": true
    },
    {
      "name": "NEO4J_DATABASE",
      "description": "Neo4j database name (default: neo4j)",
      "envVar": "NEO4J_DATABASE"
    },
    {
      "name": "NEO4J_AURA_CLIENT_ID",
      "description": "Neo4j Aura API Client ID",
      "envVar": "NEO4J_AURA_CLIENT_ID"
    },
    {
      "name": "NEO4J_AURA_CLIENT_SECRET",
      "description": "Neo4j Aura API Client Secret",
      "envVar": "NEO4J_AURA_CLIENT_SECRET",
      "sensitive": true
    },
    {
      "name": "NEO4J_NAMESPACE",
      "description": "Namespace prefix for tool names",
      "envVar": "NEO4J_NAMESPACE"
    }
  ]
}

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

1mo ago First seen · 61 lines scan A 0a54ce73fc69

Subscribe to this mod's changes

mcp-neo4j is a plugin published in the GitHub repository neo4j-contrib/mcp-neo4j (989 stars, last pushed 1mo ago), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-09.

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mcp-neo4j

Getting it into your agent

Wrote this? Show the measurements

Grade A, and why

Nothing flagged

What it actually says

What this file has done since we first saw it

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