n8n Assistant MCP server for AI agents

This MCP server creates an assistant integrated with n8n that helps you search for n8n documentation, example workflows, and community forums. It leverages web search capabilities to fetch relevant information and processes requests asynchronously for faster response times.

Features

Web Search: Searches n8n documentation, workflows, and community forums
HTML Content Fetching: Extracts main content from search results using BeautifulSoup
Asynchronous Processing: Performs HTTP requests asynchronously for faster responses

Requirements

Python 3.7 or higher
httpx library
beautifulsoup4 library
python-dotenv library

Installation

Via Smithery

For automatic installation with Claude Desktop via Smithery:

npx -y @smithery/cli install @onurpolat05/n8n-assistant --client claude

Manual Installation

Clone the repository:

git clone <repository-url>
cd <repository-directory>

Install required dependencies:
```
pip install -r requirements.txt
```
Create a .env file with your API keys:
```
SERPER_API_KEY=your_api_key_here
```

Usage

Starting the Server

Run the following command to start the assistant:

uvicorn main:app --reload

Querying the Assistant

You can query the assistant for n8n-related information:

await get_n8n_info("HTTP Request node", "docs")

MCP Server Configuration

The server can be started with the following configuration:

{
    "mcpServers": {
        "n8n-asistans": {
            "command": "uv",
            "args": [
                "--directory",
                "/n8n-assistant",
                "run",
                "main.py"
            ],
            "env":{
                "SERPER_API_KEY": "your_api_key_here"
            }
        }
    }
}

Make sure to replace your_api_key_here with your actual Serper API key.

How to add this MCP server to Cursor

There are two ways to add an MCP server to Cursor. The most common way is to add the server globally in the ~/.cursor/mcp.json file so that it is available in all of your projects.

If you only need the server in a single project, you can add it to the project instead by creating or adding it to the .cursor/mcp.json file.

Adding an MCP server to Cursor globally

To add a global MCP server go to Cursor Settings > MCP and click "Add new global MCP server".

When you click that button the ~/.cursor/mcp.json file will be opened and you can add your server like this:

{
    "mcpServers": {
        "cursor-rules-mcp": {
            "command": "npx",
            "args": [
                "-y",
                "cursor-rules-mcp"
            ]
        }
    }
}

Adding an MCP server to a project

To add an MCP server to a project you can create a new .cursor/mcp.json file or add it to the existing one. This will look exactly the same as the global MCP server example above.

How to use the MCP server

Once the server is installed, you might need to head back to Settings > MCP and click the refresh button.

The Cursor agent will then be able to see the available tools the added MCP server has available and will call them when it needs to.

You can also explictly ask the agent to use the tool by mentioning the tool name and describing what the function does.