ExactMelt MCP Server

by exactmelt Your server? Claim it

not responding

ExactMelt is listed as active in the registry but did not answer our last check. It exposes 6 tools. Last commit 2 Nov 2026.

Metal and coin melt values

Uptime history 6 days of history · worst day 0%

6 days agonow

3.3%

Uptime 24h

3 of 92 checks

Tools

read from the server

556 ms

Response time

average over 24h

Stars

last commit 2 Nov 2026

ExactMelt does not always answer

Over the last week it answered 25.8% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 5 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add exactmelt-com --transport http https://exactmelt.com/api/mcp

Settings → Connectors → Add custom connector, then paste this address

https://exactmelt.com/api/mcp

~/.codex/config.toml

[mcp_servers.exactmelt-com]
url = "https://exactmelt.com/api/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "exactmelt-com": {
      "url": "https://exactmelt.com/api/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "exactmelt-com": {
      "type": "http",
      "url": "https://exactmelt.com/api/mcp"
    }
  }
}

Available tools 6

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

calculate

calculate_coin_value

Coin melt value and fine-metal content from a native coin issue, quantity or standard rolls, and optional measured total grams. Includes current website quotes, optional buyer-offer comparison and a prefilled PDF-report link.

calculate_exchange

Gold-to-silver or silver-to-gold exchange weight at current website quotes, including sale discount, purchase premium and fees. Includes a prefilled PDF-report link.

calculate_melt_value

Precious-metal melt value, fine content, unit rates and optional buyer-offer comparison from metal, purity, weight and construction. Includes current website quotes and a prefilled PDF-report link. Custom spot prices and mixed worksheets are supported.

calculate_penny_nickel

Penny or nickel alloy metal value from count or measured total grams and explicit manual base-metal prices in USD per ordinary pound. Includes constituent weights, face value and a prefilled PDF-report link.

coin

get_coin

A native precious-metal coin preset with issue years, image, specifications and a quantity-one melt calculation at the current website quote.

coins

find_coins

Native precious-metal coin presets with issue years, images, metal specifications and current melt value per coin, filtered by name or metal.

Endpoints

URL	Transport	State	Latency	Checked
https://exactmelt.com/api/mcp	streamable-http	answering	90 ms	5 min ago

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ExactMelt — questions

Answers built from our own checks of this server.

What can ExactMelt do?

It exposes 6 tools, read directly from the server on our last check. Among them: calculate_coin_value, calculate_exchange, calculate_melt_value, calculate_penny_nickel, find_coins, get_coin. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is ExactMelt working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 3 of 92 checks got a reply (3.3%), average response time 556 ms. The bar chart above shows every period we have measured.

The registry lists ExactMelt as active — why does it not respond?

The official MCP registry stores what the author submitted; it does not verify that the server still runs. We check the endpoint ourselves, and this one does not answer. Catalogues that copy the registry without checking will show it as working.

How do I connect ExactMelt?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does ExactMelt need an API key?

No. ExactMelt completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 6 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is ExactMelt?

It answers our handshake in 556 ms on average, which is faster than 20% of all working MCP servers we measure. That is on the slow side — worth knowing if the tool sits inside an interactive loop. The comparison comes from our own checks across the whole registry, every 15 minutes.

Is ExactMelt open source?

We cannot say either way: 0 stars on GitHub, but we could not determine the licence, and without one the code is not open source by default.