MCP NIF.PT

This project implements an intelligent server based on FastMCP, allowing you to query and analyze information about Portuguese companies using the NIF.PT public API. It supports multiple useful tools such as search by NIF, company name or city, checking company status, and identifying accounting-related businesses.

Features

• Retrieve complete company data by NIF

• Check if a company is active or closed

• Identify if a company is related to accounting

• Search companies by name and city

• Get the NIF based on the exact company name

• Access external links (Google Maps, Racius, Portugalio)

Related MCP server: companies-house-mcp

Project Structure

.
├── main.py                   
├── models.py                
├── nif_client.py             
├── utils.py                
├── requirements.txt          
├── Dockerfile              
├── package.json             
└── .smithery.profile.json    

Technologies Used

• FastMCP

• FastAPI

• httpx

• Pydantic

• Docker

• Python 3.10+

How to Run

Locally

python3 -m venv .venv
source .venv/bin/activate
pip install -r requirements.txt
python main.py

The application uses transport="stdio" by default, making it compatible with Claude Desktop or terminal-based environments.

Usage Examples

• Qual é a empresa com o NIF 504426744?

• A empresa com o NIF 504426744 está ativa?

• A empresa com o NIF 504426744 é de contabilidade?

• Procurar empresas com o nome "contabilidade" em Lisboa

• Qual é o NIF da empresa "XPTO LDA"?

Output Format

The responses include details such as:

• Nome, cidade, atividade e estado

• Morada com link para Google Maps

• Contactos (telefone, email, website)

• CAE (Código de Atividade Económica)

• Ligações externas (Racius, Portugalio)

Claude Desktop Integration

To integrate this MCP with Claude Desktop:

1. Install Claude Desktop
   Download and install from: https://claude.ai/download

2. Open Configuration
   Go to File > Settings > Developer and click Edit Configuration

3. Add the MCP server configuration
   In the claude_desktop_config.json, insert the following configuration:

{
  "mcpServers": {
    "nif-pt-server": {
      "command": "uv",
      "args": [
        "--directory",
        "/ABSOLUTE/PATH/TO/YOUR/PROJECT/FOLDER",
        "run",
        "main.py"
      ]
    }
  }
}

Replace /ABSOLUTE/PATH/TO/YOUR/PROJECT/FOLDER with the actual absolute path where your main.py file is located.

4. Restart Claude Desktop
   After saving the configuration, restart Claude Desktop. Your nif-pt-server MCP should now be available in the Claude Desktop interface.

One-Click Installation via Smithery

(https://smithery.ai/server/@ruicarvalho1/mcp_nif)

With Claude Desktop open, you can install this MCP directly using the Smithery CLI.
Just paste the following command into your terminal:

npx -y @smithery/cli@latest install @ruicarvalho1/mcp_nif --client claude

This will automatically install the MCP and register it with Claude Desktop.

Author

Developed by Rui Carvalho.

License

This project is licensed under the MIT License.