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Connect Numismatic Grading Value Estimator to your AI

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. Get professional coin grades and market valuations instantly.

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 Numismatic Grading Calculator.

  1. 01

    Get coin metadata

    This capability pulls technical specifications for specific denominations. It provides details like metal content and weight.

  2. 02

    Calculate sheldon grade

    This capability determines a coin's numerical Sheldon grade and adjectival label. It uses physical traits like luster and wear to find the grade.

  3. 03

    Estimate coin value

    This capability calculates both market value and melt value. It uses current spot prices to provide accurate estimates.

Real work

What teams actually run

01

Rapid Grading

Describe a coin's luster and wear to get a Sheldon grade immediately.

02

Inventory Valuation

Calculate the market value of a collection using current silver or gold prices.

03

Technical Verification

Check the exact metal composition of a specific denomination.

04

Melt Value Checks

Determine if a coin's metal content justifies its market price.

One connector, every AI

Numismatic Grading 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 Numismatic Grading 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

813ms average. Fast in production.

Numismatic Grading Calculator is checked daily against the live service.

Daily averagePeak 1174ms
Oct 3Today
Fastest day
655ms
Slowest day
1174ms
14-day trend
Slowing+20%

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 Numismatic Grading Calculator, so you can see the experience inside your AI.

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

Numismatic Grading Calculator Connector

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

Connector linkhttps://edge.vinkius.com/vk_preview_EUd1O3i8an1Wc7pr93e0je9qlww9nQY6ZT8aOZ3K/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 — Numismatic Grading Calculator capabilities are ready to use.
Configuration · claude_desktop_config.jsonCopy
{
  "mcpServers": {
    "numismatic-grading-value-estimator-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_EUd1O3i8an1Wc7pr93e0je9qlww9nQY6ZT8aOZ3K/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 Numismatic Grading Calculator in Claude and other AIs

See all the AI clients this connector works with ↑

Who it's for

Built for the work Numismatic Grading Calculator owners hand off.

This MCP is built for anyone managing or valuing US coin collections through an AI interface.

  • 01

    Numismatists

    They hand off physical descriptions to the AI to get quick Sheldon grade estimates.

  • 02

    Coin Dealers

    They use the capability to quickly calculate melt values and market pricing for inventory.

  • 03

    Collectors

    They use it to check the technical specs and estimated worth of new acquisitions.

FAQ

Questions Numismatic Grading Calculator owners ask.

  • 01

    How does the MCP calculate coin grades?

    It uses the calculate_sheldon_grade capability to analyze physical traits like luster and wear to assign a numerical grade.

  • 02

    Can I get the melt value of my coins?

    Yes, the estimate_coin_value capability calculates both market value and melt value using current spot prices.

  • 03

    What kind of coin data can I retrieve?

    You can use get_coin_metadata to find technical specifications like weight and metal content for specific denominations.

  • 04

    Which AI clients can use this MCP?

    This MCP works with any compatible client, including Claude, Cursor, Windsurf, and VS Code.

  • 05

    Does this work for non-US coins?

    This specific MCP is designed for US coinage analysis.

  • 06

    How do I determine the grade of my coin?

    You can use the calculate_sheldon_grade capability. Provide details regarding the wear percentage, luster, strike quality, and surface marks to receive a Sheldon scale grade.

  • 07

    Does this capability account for precious metal prices?

    Yes. When using estimate_coin_value, you provide the current spot price, and the capability will calculate both the numismatic value and the melt value.

  • 08

    Can I get technical details about specific coins?

    Yes, the get_coin_metadata capability provides technical specifications such as metal content and weight for supported US coin types.

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