n8n MCP Server

This is a Model Context Protocol (MCP) server for n8n. It allows AI clients (like Claude Desktop or compatible IDEs) to list, inspect, and manage your n8n workflows.

Configuration

1. Environment Variables: Copy .env.example to .env and fill in your n8n details:

   cp .env.example .env

   Edit .env:

   N8N_HOST=https://your-n8n-instance.com
   N8N_API_KEY=your-api-key-here

2. Build:

   npm install
   npm run build

Antigravity Configuration

To use this MCP server with Google Antigravity, you need to add it to your mcp_config.json file.

1. Open Antigravity.

2. Go to Settings > MCP Servers.

3. Click View raw config to open mcp_config.json.

4. Add the following configuration (replace the environment variables with your actual values):

{
  "mcpServers": {
    "n8n": {
      "command": "node",
      "args": [
        "/path-to-project/dist/index.js"
      ],
      "env": {
        "N8N_HOST": "https://your-n8n-instance.com",
        "N8N_API_KEY": "your-api-key-here"
      }
    }
  }
}

Note: Make sure to run npm run build first so the dist/index.js file exists.

Usage

To use this MCP server with an AI client:

1. Command: node

2. Args: /Users/stefano/Documents/Progetti/n8n MCP/dist/index.js

Available Tools

• list_workflows: List all workflows (supports filtering by active status and tags).

• activate_workflow: Activate a workflow by ID.

• deactivate_workflow: Deactivate a workflow by ID.

• get_workflow: Get details of a specific workflow.

• create_workflow: Create a new workflow with a given name and nodes/connections.

• search_templates: Search the n8n public template library to find workflow examples.

• get_node_specs: Get a link to the official documentation for a specific node type.

• create_tag: Create a new tag for organizing workflows.

• list_tags: List all available tags.

• add_tags_to_workflow: Add one or more tags to an existing workflow.

• index_all_nodes: Returns a directory of node categories (Core, Trigger, App) with links to their official documentation.

Safety Note: There is no delete_workflow tool implemented to prevent accidental deletion of your workflows.

Available Resources

• n8n://workflows: A dynamic list of all workflows.