n8n Workflow Builder MCP Server

A Model Context Protocol (MCP) server for programmatically creating and managing n8n workflows.

Features

• Create workflows with nodes and connections

• Validate workflow specifications

• Export complete workflow configurations

• REST API interface through MCP

Related MCP server: MCP Server for n8n Integration

Installation

Installing via Smithery

To install n8n Workflow Builder for Claude Desktop automatically via Smithery:

npx -y @smithery/cli install n8n-workflow-builder --client claude

Manual Installation

1. Clone the repository:

git clone https://github.com/[your-username]/n8n-workflow-builder.git
cd n8n-workflow-builder

2. Install dependencies:

npm install

3. Compile TypeScript:

npx tsc

4. Start the server:

npm start

Usage

The server provides a create_workflow tool that accepts a workflow specification:

{
  "nodes": [
    {
      "type": "n8n-nodes-base.httpRequest",
      "name": "HTTP Request",
      "parameters": {
        "url": "https://example.com",
        "method": "GET"
      }
    }
  ],
  "connections": []
}

Configuration

Add the server to your MCP configuration:

{
  "n8n-workflow-builder": {
    "command": "node",
    "args": ["/path/to/n8n-workflow-builder/dist/index.js"]
  }
}

License

MIT