How to Use the Genderize MCP in Claude

Q: What's the difference between estimategender and estimategenderus in Claude Desktop?

The estimategender tool uses a global dataset. estimategenderus is tuned specifically for names common in the United States, which can give you a more accurate probability for US-based name lists.

Q: Is it possible to check if the Genderize API is down from inside Claude Desktop?

Absolutely. Just ask your agent to run the verifyapiconnection tool. It will tell you immediately if the service is reachable.

Get gender estimates from first names right inside Claude Desktop, for both web and local workflows.

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Connect Genderize MCP to Claude Desktop

Create your Vinkius account to connect Genderize 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 Genderize with Claude Desktop

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Analyze Name Lists in Bulk

The `estimate_genders_bulk` tool is built for running analysis on lists of first names. You can paste a list directly into the Claude chat window and ask it to get gender predictions for the whole batch. It's a fast way to get a rough cut of demographic data for a marketing list. If you're using the native Claude Desktop app, you can point it to a local CSV file on your machine. Your agent can read the file and process the names using the tool without that data ever leaving your computer to get to Claude's models. That's a huge win for privacy.

Use Localized Data for Better Guesses

Don't settle for generic predictions when you have better information. This server gives you region-specific tools like `estimate_gender_brazil` and `estimate_gender_uk`. When you know the origin of a name list, tell your agent to use the right tool to get a more accurate probability. This works perfectly in Claude Desktop's conversational interface. Just ask, "Using the Spanish tool, what's the gender for 'Javier'?" Your agent knows to call `estimate_gender_spain` and gives you the result, including the probability score and data count.

Verify Your Claude Desktop Connection

Before you run a big job, you need to know if the service is even online. The `verify_api_connection` tool is a simple, direct check. Ask Claude, "Is the Genderize API connected?" and you'll get a confirmation back in seconds. This saves you from wasting time on failed requests. It's a basic but essential part of any real workflow that depends on an external service. This MCP Server makes that check a simple, conversational command.

Setup guide

Set up Genderize 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 Genderize 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 Genderize 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 genderize-mcp.

json

{
  "mcpServers": {
    "genderize-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 Genderize. 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 Genderize MCP in Claude Desktop

Just paste the list of names into the chat and ask Claude to get the genders using the `estimate_genders_bulk` tool. It will process the entire list in a single call.

The `estimate_gender` tool uses a global dataset. `estimate_gender_us` is tuned specifically for names common in the United States, which can give you a more accurate probability for US-based name lists.

Yes. You can connect this MCP Server to Claude on the web (claude.ai) on any plan, including the free one. Just paste the server URL into the Custom Connectors settings.

Absolutely. Just ask your agent to run the `verify_api_connection` tool. It will tell you immediately if the service is reachable.

Your list of first names is sent to the Vinkius-managed MCP Server for processing. The server runs in an ephemeral sandbox, meaning the data is used only for the API call to Genderize.io and is immediately discarded. Nothing is stored.

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