# IP2WHOIS MCP Server
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A Model Context Protocol (MCP) server that provides comprehensive WHOIS lookup capabilities using the **IP2WHOIS API**. This server allows AI agents to query domain registration details, including expiry dates, registrar information, and registrant data. This server also supports query on hosted domains by IP address.

## Features

-   **Domain Lookup**: Retrieve detailed WHOIS data for any domain name.

-   **Hosted Domains Lookup**: Retrieve hosted domains data for any IP address.
    
-   **Comprehensive Data**: Includes domain age, nameservers, registrar info, and administrative/billing contact details.
    
-   **FastMCP Framework**: Built using the high-performance FastMCP Python framework.

## Requirement

This MCP server requires an API key to work. You can [sign up](https://www.ip2location.io/sign-up) for a free API key and enjoy up to 500 queries per month.

The setup also use `uv`, which can be install by following [the guide](https://modelcontextprotocol.io/quickstart/server#set-up-your-environment).

## Setup

Follow the steps to use this MCP server with Claude Desktop:
 1. Setup the `uv` package manager, you can once again refer to [the guide](https://modelcontextprotocol.io/quickstart/server#set-up-your-environment) to do so.
 2. Make sure you have installed the Claude Desktop, if you haven't, kindly download from [here](https://claude.ai/download) for Windows and MacOS users, or follow [this guide](https://modelcontextprotocol.io/quickstart/client) for Linux user.
 3. Open the `claude_desktop_config.json` in your choice of editor, if you do not having one yet, follow [this guide](https://modelcontextprotocol.io/quickstart/server#testing-your-server-with-claude-for-desktop) to create one.
 4. Add the following to your `claude_desktop_config.json`:

```json
{
  "mcpServers": {
    "ip2whois": {
      "command": "uvx",
      "args": ["mcp-ip2whois"],
      "env": {
        "IP2WHOIS_API_KEY": "<YOUR API key HERE>"
      }
    }
  }
}
```
 5. To get your API key, just [login](https://www.ip2location.io/log-in) to your dashboard and get it from there. Replaced the `<YOUR API key HERE>` in above with your actual API key.
 6. Restart the Claude Desktop after save the changes, and you should see it appear in the `Search and tools` menu.

## Usage

To query the WHOIS information, just enter your query about the domain in a chat in Claude Desktop. Some of the example query will be:

- Who is the registrar of the (domain)?
- Who is the owner of (domain)?
- What is the WHOIS for (domain)?

For instance, below is the result of the domain google.com:

![The output of the domain google.com](example.png "The output of the domain google.com")

To query for the hosted domains by IP address, just enter your query about the IP in a chat in Claude Desktop. Some of the example query will be:
- What domains did (IP) have?
- What are the domains in (IP)?
- What's the domain owned by (IP)?

In Claude Desktop, the model will automatically generate the output based on the result returned by IP2WHOIS MCP server.

## Environment Variable

`IP2WHOIS_API_KEY`

The IP2WHOIS API key, which allows you to query up to 500 per month for free and more details of the IP address. You can [sign up](https://www.ip2location.io/sign-up) for a free API key, or [subscribe](https://www.ip2location.io/pricing) to a plan to enjoy more benefits.
 
## Tools

### `get_whois`

Look up WHOIS data for a domain name.

-   **Arguments**:
    
    -   `domain` (string): The domain name to look up (e.g., `google.com`).
        
-   **Output**: Returns a JSON object containing:
    
    -   `domain_id`, `status`, `domain_age`
        
    -   `create_date`, `update_date`, `expire_date`
        
    -   `registrar` (name, url, etc.)
        
    -   `registrant` (name, organization, country)
        
    -   `nameservers`

### `get_hosted_domains`

Query for the list of hosted domain names by IP address.

-   **Arguments**:
    
    -   `ip` (string): The IP address (IPv4 or IPv6) to look up.
        
-   **Output**: Returns a JSON object containing the domains hosted on the ip address, and the total number of hosted domains found

## License

See the LICENSE file.

<!-- mcp-name: io.github.ip2whois/mcp-ip2whois -->