NAZCAMEDIA n8n MCP Server

An enhanced MCP server that provides access to n8n workflows, executions, credentials, and more through the Model Context Protocol (MCP). This allows Large Language Models (LLMs) to interact with n8n instances in a secure and standardized way.

Features

Core Features

• List and manage workflows
• View workflow details
• Execute workflows
• Manage credentials
• Handle tags and executions
• Generate security audits
• Manage workflow tags

Enterprise Features

These features require an n8n enterprise license:

• Project management
• Variable management
• Advanced user management

Installation

Getting your n8n API key

1. Log in to your n8n instance
2. Click on your user icon in the bottom left
3. Go to Settings
4. Select API
5. Click "Create API Key"
6. Copy your API key (you won't be able to see it again)

Installing the MCP Server

Option 1: Install from npm (Recommended)

npm install -g @nazcamedia/n8n-mcp-server

Option 2: Install using Smithery.ai

Smithery.ai offers a simple way to install and manage MCP servers:

1. Visit NAZCAMEDIA n8n on Smithery
2. Click "Install"
3. Follow the instructions to set up the server with your API key and n8n URL

Option 3: Install from Source

1. Clone the repository:

git clone https://github.com/nazcamedia/n8n-mcp-server.git
cd n8n-mcp-server

2. Install dependencies and build:

npm install
npm run build

3. Start the server in the background:

nohup npm start > n8n-mcp.log 2>&1 &

To stop the server:

pkill -f "node build/index.js"

Note: When installed from npm, the server will be available as n8n-mcp-server in your PATH.

Configuration

Claude Desktop

1. Open your Claude Desktop settings:

~/Library/Application Support/Claude/claude_desktop_config.json

2. Add the n8n configuration:

{
  "mcpServers": {
    "n8n": {
      "command": "n8n-mcp-server",
      "env": {
        "N8N_HOST": "https://your-n8n-instance.com",
        "N8N_API_KEY": "your-api-key-here",
        "DEBUG": "true"
      }
    }
  }
}

Cline (VS Code)

1. Install the server (follow the Installation steps above)
2. Open VS Code
3. Open the Cline extension from the left sidebar
4. Click on the 'MCP Servers' icon at the top of the panel
5. Scroll to the bottom and click 'Configure MCP Servers'
6. Add to the opened config file:

{
  "mcpServers": {
    "n8n": {
      "command": "n8n-mcp-server",
      "env": {
        "N8N_HOST": "https://your-n8n-instance.com",
        "N8N_API_KEY": "your-api-key-here",
        "DEBUG": "true"
      }
    }
  }
}

7. Save the file
8. Make sure the MCP switch is enabled (green) and the status indicator is green
9. Start using MCP commands in Cline

Validation

After configuration:

1. Restart your LLM application
2. Ask: "List my n8n workflows"
3. You should see your workflows listed

If you get an error:

• Check that your n8n instance is running
• Verify that your API key has the correct permissions
• Make sure N8N_HOST doesn't have a trailing slash

Troubleshooting

Common Issues

1. "Client not initialized"

   • Check that N8N_HOST and N8N_API_KEY are configured correctly
   • Make sure the n8n instance is accessible
   • Verify API key permissions

2. "License required"

   • You're trying to use an enterprise feature
   • Either upgrade to n8n Enterprise or use only core features

3. Connection Issues

   • Verify that the n8n instance is running
   • Check the URL protocol (http/https)
   • Remove trailing slash from N8N_HOST

Improvements Over Original Version

This enhanced version includes:

1. Modular Code Structure: Organization into separate modules for better maintenance
2. Enhanced Documentation: More detailed instructions and examples
3. Robust Error Handling: Better error management and reporting
4. Type Compatibility: Fixed typing issues in IDs and parameters
5. Additional Functions: Support for more n8n API operations
6. Development Mode: Support for development with auto-reload

Usage from Cursor with Claude

This MCP server is especially optimized to work with Claude from Cursor.

{
  "mcpServers": {
    "n8n": {
      "command": "npx",
      "args": [
        "-y",
        "@nazcamedia/n8n-mcp-server@latest"
      ],
      "env": {
        "N8N_HOST": "https://your-n8n-instance.com",
        "N8N_API_KEY": "your-api-key-here",
        "DEBUG": "false"
      }
    }
  }
}

Publishing to npm

If you want to publish your own modified version of this MCP server:

1. Update the version in package.json
2. Run npm run build
3. Run npm publish --access public

Support

• GitHub Issues
• n8n Documentation

License

MIT License