How to Use the Numbers API MCP in Claude

Q: How do I install the Numbers API on Claude Desktop?

Open your claudedesktopconfig.json file and add the server configuration under the mcpServers key. Restart the Claude Desktop app, and the five number tools will show up under the hammer icon.

Q: What happens when I request a year fact?

The agent invokes getyearfact to fetch a notable historical milestone from that specific year. It parses the plain-text response and presents the event directly inside your chat window.

Feed interesting date and math facts directly into your Claude Desktop chat with zero friction.

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Connect Numbers API MCP to Claude Desktop

Create your Vinkius account to connect Numbers API 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 Numbers API with Claude Desktop

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Pull real-time date trivia into Claude Desktop chats

Your agent uses `get_date_fact` to retrieve immediate, verified historical events that occurred on any calendar day you specify. If you are writing a newsletter or looking for historical hooks, this tool pulls real data without forcing you to browse external websites. It runs locally inside your Claude Desktop app via stdio transport, meaning your date-based queries resolve instantly. You get actual historical milestones instead of generic placeholder text.

Explore mathematical properties with this MCP Server

Running `get_math_fact` lets your agent inspect the unique properties of any integer during your analysis. If you are debugging or just curious, this tool brings mathematical trivia directly into your workspace. Because Vinkius hosts this MCP Server, the connection remains stable while Claude Desktop processes the numeric data. You receive precise math details without writing custom scripts.

Generate spontaneous context using random facts

When your prompt needs unexpected angles, `get_random_fact` and `get_trivia_fact` supply immediate, quirky numerical details to break up dry text. These tools give your agent the ability to inject engaging trivia into drafts. This setup works natively in the desktop app or via custom remote MCP connectors on claude.ai, adapting to how you work. You control the flow of trivia with simple natural language.

Setup guide

Set up Numbers API 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 Numbers API 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 Numbers API 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 numbers-api-mcp.

json

{
  "mcpServers": {
    "numbers-api-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 Numbers API. 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 Numbers API MCP in Claude Desktop

Open your `claude_desktop_config.json` file and add the server configuration under the `mcpServers` key. Restart the Claude Desktop app, and the five number tools will show up under the hammer icon.

No, this server requires an active internet connection to fetch real-time facts from the upstream service. If your machine loses connection, the tools will return an error.

Yes, you can connect the server to claude.ai by pasting your Vinkius remote MCP URL into the custom connectors settings. This gives you the same five tools on any browser-based device.

The agent invokes `get_year_fact` to fetch a notable historical milestone from that specific year. It parses the plain-text response and presents the event directly inside your chat window.

Every date, year, and integer you look up goes through a secure V8 isolate sandbox on Vinkius. We never log or store the specific numbers you query, keeping your research completely private.

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