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Connect Ring Size Calculator to ChatGPT, Claude and Gemini

Set it up once and it works in ChatGPT, Claude, Cursor, and any other client you love. It all runs safely in the background, so you can relax and focus on what really matters. Turn finger measurements into accurate international ring sizes.

Ask AI about this Connector

Developed, maintained, and hosted by Vinkius.

MCP VERIFIED · PRODUCTION READY · VINKIUS GUARANTEED

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Works with modern AI clients that support MCP, including ChatGPT, Claude, Cursor, and more.

ChatGPTClaudeCursorPerplexityGeminiMicrosoft CopilotRaycastMeta AI

Your AI does the work. We keep it safe and sound.

No other AI tool gives you this. Your workflow runs in the client you already love, your account stays protected, and you decide what the agent can and cannot do. It is the whole reason to make the switch.

Each Connector lives inside our infrastructure, the same place where your workflow runs. The three things below are already part of it, working quietly in the background so you never have to think about them. Nothing to add, nothing to set up, nothing to worry about.

A futuristic MCP client docking bay
V8 Isolate01

Each Connector runs inside its own sealed environment.

Each Connector runs inside its own sealed V8 runtime — no access to your files, your system, or other servers. A Connector never sees past its own request.

Kill Switch02

One switch stops every agent. Instantly.

One action deactivates every Connector, revokes every token, and ends every session at once. AI Governance keeps the record.

FinOps per User03

Spending limits that pause instead of surprise.

Every user keeps their own connections and credentials, isolated from everyone else. Anything that would cross your spending limit is held for your approval, not billed.

Three controls, built into the layer your AI connects through.

Curated set · 3 capabilities

We ship only the actions that matter.

Capability set01 / 01

01-03

3 capabilities in this set.

Part of 3 available through Ring Size Calculator.

  1. 01

    Calculate ring size

    This capability generates a full multi-system sizing report from your measurements. It converts raw data into various international standards like US, UK, and EU sizes.

  2. 02

    Convert units

    This capability normalizes different measurement types. It turns various inputs into a standard millimeter circumference or diameter for consistent use.

  3. 03

    Get size recommendation

    This capability provides a natural language summary of the best fit. It looks at your calculated size alongside specific user constraints to give a clear recommendation.

Real work

What teams actually run

01

International E-commerce

Convert a customer's local measurement into the specific size needed for a manufacturer in another country.

02

Custom Jewelry Design

Adjust ring sizes based on the specific width of a custom-designed band.

03

Remote Sizing Assistance

Use the capability to help a client find their size using only circumference or diameter data.

04

Seasonal Fit Adjustments

Calculate how much larger a ring should be to account for finger swelling in colder temperatures.

One connector, every AI

Ring Size Calculator works with the most popular AI clients.

These are the most popular clients, each with a step-by-step guide: one link, set up once, with governance and visibility built in. And because everything runs on the MCP standard, the same connection also works in any other compatible client — nothing to rebuild.

ClaudeClaudeChatGPTChatGPTGeminiGeminiPerplexityPerplexityGrokGrokMicrosoft CopilotMicrosoft CopilotCursorCursorVS CodeVS CodeWindsurfWindsurfJetBrainsJetBrainsClineClineLangChainLangChainVercel AI SDKVercel AI SDKLovableLovableZ.aiZ.aiRaycastRaycastQwen CodeQwen CodeKimi CodeKimi CodeLe ChatLe Chat

Building your own app? The connector is yours to use.

You don't need a client to put Ring Size Calculator to work: the same hosted connection plugs into your own applications and agent code, with the same governance on every request. Build with it, chat with it — one connection for both.

Observed, not estimated

868ms average. Fast in production.

Ring Size Calculator is checked daily against the live service.

Daily averagePeak 1068ms
Oct 3Today
Fastest day
706ms
Slowest day
1068ms
14-day trend
Improving-10%

Connect your client

One URL. Every client.

Activate the Connector, copy your link, and paste it into the client you already use. 3 capabilities arrive ready to run.

Preview access · not provider authentication

The vk_preview_* token belongs to Vinkius preview infrastructure. It lets Claude discover and display the capabilities of Ring Size Calculator, so you can see the experience inside your AI.

It does not authenticate your account with Ring Size Calculator. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.

Ring Size Calculator Connector

You're all set. Choose your MCP client and follow the setup instructions.

Connector linkhttps://edge.vinkius.com/vk_preview_5Q4EO5LcZ53zmZbaxBAUqb2XILLWb6rryjWcwlmk/mcp

Claude Desktop

Follow the steps below to connect in seconds.

  1. 1In Claude Desktop, open Settings → Connectors.
  2. 2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
  3. 3Click Add and start a new chat — Ring Size Calculator capabilities are ready to use.
Configuration · claude_desktop_config.jsonCopy
{
  "mcpServers": {
    "ring-size-calculator-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_5Q4EO5LcZ53zmZbaxBAUqb2XILLWb6rryjWcwlmk/mcp"
    }
  }
}
  • Claude
  • ChatGPT
  • Cursor
  • VS Code
  • Windsurf
  • Claude Code
  • JetBrains
  • Cline

Step-by-step instructions for each client are in the guide. How to connect

Guided setup for Claude? Set up Ring Size Calculator in Claude and other AIs

See all the AI clients this connector works with ↑

Who it's for

Built for the work Ring Size Calculator owners hand off.

This MCP is built for anyone handling jewelry measurements and international sizing conversions.

  • 01

    Jewelry Designers

    They hand off raw finger measurements to the AI to get precise sizing for custom orders.

  • 02

    E-commerce Specialists

    They use the capability to provide accurate sizing advice to customers across different regions.

  • 03

    Personal Shoppers

    They use the AI to convert local measurements into the correct international sizes for luxury purchases.

FAQ

Questions Ring Size Calculator owners ask.

  • 01

    Which international ring sizes are supported?

    The MCP supports US, UK, France, Germany, Japan, and Switzerland standards.

  • 02

    How does the capability handle wide ring bands?

    The capability adjusts the calculated size to account for the extra surface area of wider bands.

  • 03

    Can I use diameter instead of circumference?

    Yes, the capability can convert either diameter or circumference into the required sizing reports.

  • 04

    Does it account for finger swelling?

    Yes, the capability includes physiological factors like temperature-induced swelling in its calculations.

  • 05

    How do I connect this to my AI client?

    You connect once through Vinkius to access the MCP in any compatible client like Claude or Cursor.

  • 06

    How do I use the sizing capability?

    Provide your finger measurement (circumference or diameter) and the unit (mm or inches) to the calculate_ring_size capability to receive a full report.

  • 07

    Does it account for wide bands?

    Yes, if you specify a bandWidth greater than 6mm, the capability automatically adjusts the size for better comfort.

  • 08

    Can I adjust for temperature changes?

    Yes, you can enable temperatureAdjustment to account for fingers swelling in heat or shrinking in cold.

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