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How to connect Neo4J to Claude

Connect Claude Web, Desktop and Cowork to Neo4J MCP. Run cypher queries on customer graph, find shortest paths between accounts, and more using natural language, with authentication handled for you.

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Neo4J is a graph database platform for storing and querying connected data. Use it to model relationships, run Cypher queries, and power real-time graph analytics.

21 Tools

Introduction

Claude is Anthropic's AI assistant, available on the web, in the desktop app, and on mobile. Cowork is its agent for knowledge work, and it runs on all of those surfaces too. Connected to your apps, Claude can work with your files and services to accomplish complex tasks on your behalf.

This guide walks you through the easiest and most secure way to connect your Neo4J account to Claude via Composio Connect, enabling it to run Cypher queries on customer graph, find shortest paths between accounts, create nodes for new transactions, and more such actions on your behalf without compromising your account security.

Setup is the same on Claude Web, Desktop, and Cowork, and you only need to do it once. The connector is tied to your account, so it's available in all three.

Also integrate Neo4J with

Codex

Connecting Neo4J to Claude Web, Desktop, and Cowork

Two ways to add the Composio connector. Pick whichever you prefer.

1. Add with one click

Click the button. Claude opens with the Composio connector filled in. Click Add, then go to step 2.

Add to Claude

Add manually

In Claude Desktop, click Customize in the left sidebar, then select Connectors and click the + icon at the top.

Claude Desktop connectors screen with Add custom connector selected

Click Add custom connector and paste in the Composio MCP server URL:

bash
https://connect.composio.dev/mcp
Add custom connector dialog with Composio MCP server URL

2. Authorize in your browser

Click Connect. You'll be redirected to a browser window where you can authorize Composio to continue.

Composio authorization screen for Claude Web, Desktop, and Cowork

3. Connect your Neo4J account

Back in Claude, ask it to connect to Neo4J or give it any Neo4J-related task.

For example, ask Claude to:

  • "Run Cypher queries on customer graph"
  • "Find shortest paths between accounts"
  • "Create nodes for new transactions"

It will prompt you to authenticate and authorize access.

That's it. Composio's tools are now available in Claude, and your Neo4J account is ready to use.

What is the Neo4J Claude Connector, and what's possible with it?

The Neo4J MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Neo4J account. It provides structured and secure access so your agent can perform Neo4J operations on your behalf.

Troubleshooting

1. Why does Claude not use the Composio connector for Neo4J?

The connector can show as connected, but Claude must use it in each Neo4J conversation.

  • Click + at the lower left of the chat, or type /.
  • Hover Connectors.
  • Turn on Composio.
  • Ask Claude to connect to Neo4J again.

2. Why does Claude show an MCP server error before Neo4J connects?

Claude can show Couldn't reach the MCP server or Authorization with the MCP server failed when you add the connector for Neo4J.

  • Check that the connector URL is https://connect.composio.dev/mcp.
  • Connectors run from Anthropic's cloud, so your device network is usually not the problem.
  • Add the connector again from Customize > Connectors, then ask Claude to connect Neo4J.
  • If it fails again, send the error and the ofid_ reference id to support@composio.dev.

3. Why does the Neo4J authorization link not work?

The Composio connector is one server. Your Neo4J account connects separately when Claude asks for it.

  • If the browser does not open, or the link expires, ask Claude to retry the Neo4J connection.
  • Composio creates a fresh Neo4J authorization link.
  • Open that link in your browser and finish the Neo4J sign-in.

4. Why do Neo4J actions fail after they worked before?

The Neo4J connection can expire or lose permission.

  • Ask Claude to inspect the Neo4J connection.
  • If the connection is unhealthy, disconnect it when Claude prompts you.
  • Reconnect the Neo4J account and retry the action.
  • If Claude shows a permission prompt, approve it before Claude changes data in Neo4J.
  • If the action still fails with a permission error, check that the connected account has that permission in Neo4J itself.

5. How do I switch to a different Neo4J account?

Claude can manage the Neo4J connection for you.

  • Ask Claude to disconnect or delete the current Neo4J account.
  • Ask Claude to connect Neo4J again.
  • Open the new Composio authorization link for Neo4J.
  • Sign in with the other Neo4J account in the browser.
  • After the account connects, ask Claude to retry the Neo4J task.

6. Why is my Neo4J connection missing in Claude Desktop or on a Team plan?

The connector belongs to your Claude account, so your Neo4J connection works in Claude Web, Desktop, and Cowork.

  • In Claude Desktop, open Customize > Connectors.
  • Next to Composio, click ⋮ and click Clear cache.
  • If Neo4J tools still do not appear, click ⋮, disconnect, remove the connector, and add it again.
  • On Team or Enterprise, an Owner or Primary Owner must enable the connector before you can connect Neo4J.
TOOLS

Supported Tools

Every Neo4J action and event your agent gets out of the box.

Aggregate Directors Count

Executes a directorsAggregate GraphQL query to count directors in Neo4j.

Create Neo4j Aura Instance

Creates a new Neo4j Aura instance with the specified configuration.

Create Neo4j Aura Snapshot

Create an on-demand snapshot of a Neo4j Aura instance.

Estimate GDS Session Size

Estimate the size of a new GDS (Graph Data Science) session based on node/relationship counts and algorithm categories.

Get Neo4j Aura Instance Details

Retrieves details for a specific Neo4j Aura instance using its unique instance ID.

Get Neo4j Aura Organization User

Retrieves details of a specific user in a Neo4j Aura organization.

Get Neo4j Aura Project Details

Retrieve details of a specific Neo4j Aura project (tenant).

Get Neo4j Aura Project Details (v1beta5)

Retrieve details of a specific Neo4j Aura project (tenant) using the v1beta5 API.

Get Neo4j Aura Snapshot Details

Retrieves details of a specific snapshot for a Neo4j Aura instance.

List Neo4j Aura Agents

List all agents belonging to a specific Neo4j Aura project.

List GDS Sessions

List all Graph Data Science (GDS) sessions for the authenticated Neo4j Aura account.

List Neo4j Aura Instances

Returns a list of Neo4j Aura instances.

List IP Filters

Returns a list of IP filters configured for a Neo4j Aura organization.

List Aura Projects

List all Aura projects (tenants) available to the authenticated user.

List Project Users

List all users in a specific Neo4j Aura project.

List Neo4j Aura Snapshots

Lists available snapshots for a Neo4j Aura instance.

Pause Neo4j Aura Instance

Pauses a Neo4j Aura instance.

Restore Neo4j Aura Instance from Snapshot

Restore a Neo4j Aura instance from a snapshot.

Update Neo4j Aura Instance

Updates a Neo4j Aura instance configuration.

Update Neo4j Aura Instance

Edits the configuration of a Neo4j Aura instance.

Update IP Filter

Updates an existing IP filter for a Neo4j Aura organization.

FRAMEWORKS

How to build Neo4J MCP Agent with another framework

Codex logo

Codex

Use Neo4J MCP with Codex

FAQ

Frequently asked questions

With a standalone Neo4J MCP server, the agents and LLMs can only access a fixed set of Neo4J tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Neo4J and many other apps based on the task at hand, all through a single MCP endpoint.

Yes, you can. Claude Cowork fully supports MCP integration. You get structured tool calling, message history handling, and model orchestration while Tool Router takes care of discovering and serving the right Neo4J tools.

Yes, absolutely. You can configure which Neo4J scopes and actions are allowed when connecting your account to Composio. You can also bring your own OAuth credentials or API configuration so you keep full control over what the agent can do.

All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your Neo4J data and credentials are handled as safely as possible.

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