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ExactMelt

Official registry Other

Metal and coin melt values

Source code Website Documentation

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

Remote (streamable-http)
Claude Code 
claude mcp add --transport http exactmelt 'https://exactmelt.com/api/mcp'
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "exactmelt": {
            "type": "http",
            "url": "https://exactmelt.com/api/mcp"
        }
    }
}

Documentation

From the project's README on GitHub, refreshed weekly. Links open on GitHub.

Contents
  1. ExactMelt MCP app
  2. Connect
  3. Tools
  4. Try asking
  5. Report an issue
  6. License

ExactMelt MCP app

ExactMelt values metals and coins inside ChatGPT, Claude and other MCP clients. Enter weight, purity, quantity or rolls, compare a buyer's offer, exchange gold and silver, or build a mixed worksheet. Every result links to a prefilled PDF report on exactmelt.com.

This repository documents the hosted connector. It does not contain the website or its code.

Connect

  • Endpoint: https://exactmelt.com/api/mcp
  • Transport: Streamable HTTP
  • Authentication: none (no account, sign-in or API key)
{ "mcpServers": { "exactmelt": { "url": "https://exactmelt.com/api/mcp" } } }

In ChatGPT, add it as a custom app/connector with no authentication. In Claude, open Customize → Connectors → Add custom connector and enter the URL.

Tools

All tools are read-only.

ToolWhat it does
calculate_melt_valuePrecious-metal melt value, fine content, unit rates and an optional buyer-offer comparison
calculate_coin_valueCoin melt value and fine-metal content by quantity, standard rolls or measured grams
find_coinsCoin presets with issue years, specifications and current melt value per coin
get_coinOne coin preset with its specifications and a quantity-one melt calculation
calculate_exchangeGold-to-silver or silver-to-gold exchange weight at current quotes
calculate_penny_nickelPenny or nickel alloy metal value at the base-metal prices you enter

Try asking

  • "What's my 14K ring worth, 5.2 grams?"
  • "Calculate the melt value of 10 Morgan dollars."
  • "Exchange 1 troy ounce of gold for silver at current spot."

Report an issue

Open an issue in this repository or email abishop1933@gmail.com.

License

The documentation files in this repository are MIT licensed (see LICENSE). The ExactMelt website, its content, data and brand are not covered by this license.

Frequently asked questions

What is ExactMelt?

Metal and coin melt values

How do I install ExactMelt?

It runs as a remote server. In Claude Code: claude mcp add --transport http exactmelt 'https://exactmelt.com/api/mcp'. For other clients, paste the JSON configuration from this page into their MCP settings.

Does ExactMelt need an API key?

Its registry entry lists no required key or secret. Some features may still need an account with the service it connects to.

Is ExactMelt open source?

Its code is public on GitHub, but the repository does not declare a standard license.

Who maintains ExactMelt?

It is published by DmitryNeznanov. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.