# MCP Neo4j Memory (MCP server)

> MCP Neo4j Memory is an MCP server that adds database tools to AI assistants such as Claude Desktop, Claude Code and Cursor. MCP Neo4j Knowledge Graph Memory Server. It has 988 GitHub stars, is released under the MIT license and runs locally with uvx mcp-neo4j-memory.

mcp-name: io.github.neo4j-contrib/mcp-neo4j-memory A Model Context Protocol (MCP) server implementation that provides persistent memory capabilities through Neo4j graph database integration.

## Key facts

| Fact | Value |
|---|---|
| Repository | https://github.com/neo4j-contrib/mcp-neo4j |
| GitHub stars | 988 |
| License | MIT |
| Language | Python |
| Transport | stdio |
| Packages | pypi: mcp-neo4j-memory |
| Remote URL | none |
| Needs API key | yes |
| Official | yes |
| Works with | Claude Desktop, Claude Code, Cursor, VS Code |
| Category | Databases |
| Latest release | mcp-neo4j-cypher-v0.6.0 (Apr 10, 2026) |
| Last commit | Sep 9, 2026 |
| MCP registry name | io.github.neo4j-contrib/mcp-neo4j-memory |

## Install

### Claude Desktop (claude_desktop_config.json)

```json
{
  "mcpServers": {
    "mcp-neo4j-memory": {
      "command": "uvx",
      "args": [
        "mcp-neo4j-memory"
      ],
      "env": {
        "NEO4J_URI": "your-value",
        "NEO4J_USERNAME": "your-value",
        "NEO4J_PASSWORD": "your-value"
      }
    }
  }
}
```

Settings > Developer > Edit Config. macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\. Restart Claude Desktop afterwards.

### Claude Code

```sh
claude mcp add --env NEO4J_URI=your-value --env NEO4J_USERNAME=your-value --env NEO4J_PASSWORD=your-value --transport stdio mcp-neo4j-memory -- uvx mcp-neo4j-memory
```

### Cursor (.cursor/mcp.json)

```json
{
  "mcpServers": {
    "mcp-neo4j-memory": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "mcp-neo4j-memory"
      ],
      "env": {
        "NEO4J_URI": "your-value",
        "NEO4J_USERNAME": "your-value",
        "NEO4J_PASSWORD": "your-value"
      }
    }
  }
}
```

Project file; use ~/.cursor/mcp.json to enable it in every project.

### VS Code (.vscode/mcp.json)

```json
{
  "inputs": [
    {
      "type": "promptString",
      "id": "neo4j_password",
      "description": "NEO4J_PASSWORD",
      "password": true
    }
  ],
  "servers": {
    "mcp-neo4j-memory": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "mcp-neo4j-memory"
      ],
      "env": {
        "NEO4J_URI": "your-value",
        "NEO4J_USERNAME": "your-value",
        "NEO4J_PASSWORD": "${input:neo4j_password}"
      }
    }
  }
}
```

Config formats checked against the official docs on 2026-10-07.

## Environment variables

- `NEO4J_URI` (required): Neo4j connection URI
- `NEO4J_USERNAME` (required): Neo4j username
- `NEO4J_PASSWORD` (secret) (required): Neo4j password
- `NEO4J_DATABASE`: Neo4j database name
- `NEO4J_NAMESPACE`: Tool namespace prefix

## Tools

- `read_graph`
- `search_nodes`
- `query`: Search query matching names, types, observations
- `find_nodes`
- `names`: Entity names to retrieve
- `create_entities`
- `entities`: Array of objects with:
- `type`: Type of the entity
- `observations`: Initial observations about the entity
- `delete_entities`
- `create_relations`
- `relations`: Array of objects with:
- `source`: Name of source entity
- `target`: Name of target entity
- `delete_relations`
- `add_observations`
- `contents`: Observations to add
- `delete_observations`
- `deletions`: Array of objects with:

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