How to Use the Nationalize MCP in Claude

Guess a user's country from their name, right inside Claude Desktop. Get probabilistic nationality data without leaving your chat.

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Connect Nationalize MCP to Claude Desktop

Create your Vinkius account to connect Nationalize to Claude Desktop and route execution through our secure gateway. The platform manages server hosting, runtime updates, and security layers. Configuration requires no manual server provisioning.

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Setup Nationalize with Claude Desktop

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Predict Nationality from a Name

The `predict_nationality` tool guesses a person's country of origin based on their name. You just ask Claude to check a name, and this MCP server gives you a list of possible countries with probabilities. It's built for quick lookups when you're trying to understand your user base. This works best with last names. It's not perfect—it's a probability model—but it gives you a data point to work with for things like localizing marketing copy or segmenting user feedback.

Localize Content in Claude Desktop

Use this tool to get a quick read on a user's likely origin. Maybe you're writing an email and want to use the right regional tone. Just feed the `predict_nationality` tool a name and get back a ranked list of countries. Because this runs as a local MCP server with the Claude Desktop app, it's fast. No network latency. You can run it on contact lists right from your machine to get a better sense of your audience demographics.

Analyze User Lists Quickly

Got a CSV of new signups? You can have your agent iterate through the list and use `predict_nationality` on each name. This helps you build a rough geographic profile of a user cohort without needing IP geolocation or asking them directly. It’s a simple way to enrich your data. The results aren't definitive, but they're useful for aggregate analysis, like figuring out which regions are responding best to your latest feature launch.

Setup guide

Set up Nationalize MCP in Claude Web or Desktop

1

Open Claude Settings

Go to claude.ai, click your profile icon, then navigate to Customize → Connectors.
2

Add Custom Connector

Click the "+" button and select Add custom connector. Paste your Vinkius endpoint URL: https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com. For OAuth-protected servers, expand Advanced settings to add credentials.
3

Start a conversation

Open a new chat. The Nationalize MCP tools are available immediately — no restart needed.

Endpoint URL

https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp

No configuration file needed — paste the URL directly in the Claude web interface.

Available on Free (1 connector), Pro, Max, Team, and Enterprise plans.

Prerequisites

Claude Desktop installed (macOS or Windows)
Active Vinkius subscription with a valid endpoint token

1

Open Claude Desktop Settings

Click the menu icon at the top-left corner, go to Settings → Developer → Edit Config. This opens claude_desktop_config.json in your default text editor.
2

Paste the Nationalize MCP configuration

Copy the JSON snippet on the right into the mcpServers object. Replace [YOUR_TOKEN_HERE] with your endpoint token from cloud.vinkius.com.
3

Restart Claude Desktop

Close and reopen the application. Claude needs a full restart to load new MCPs — refreshing a conversation is not enough.
4

Verify the connection

Open a new conversation. Click the 🔌 icon at the bottom of the message input. You should see tools listed under nationalize-mcp.

json

{
  "mcpServers": {
    "nationalize-mcp": {
      "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    }
  }
}

Get your connection token →

Independent Platform Disclaimer: Vinkius is an independent platform and is not affiliated with, endorsed by, sponsored by, verified by, or otherwise authorized by Nationalize. All third-party trademarks, logos, and brand names are the property of their respective owners. Their use on this website is strictly for informational purposes to identify service compatibility and interoperability.

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Common questions about Nationalize MCP in Claude Desktop

Once the MCP server is connected, just ask Claude in plain English. For example, "Using Nationalize, what's the likely nationality for the name 'Schmidt'?" Claude will call the tool and give you the results.

No, it's probabilistic. The tool returns a list of countries with a confidence score for each. It's a good starting point for analysis, but don't use it for anything that requires absolute certainty.

It can, but you'll get better results by providing just the last name. The model is tuned for surnames, so including a first name might throw off the prediction.

Not really. The server runs as a separate process. It only uses resources when your AI client actively calls the `predict_nationality` tool.

The only data sent is the name you provide for analysis. Since Vinkius manages the server, the request is processed in an ephemeral sandbox. No names are logged or stored after the prediction is returned.

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