Silver Price Per Gram MCP

io.github.theluckystrikePublished by GitHub account theluckystrikev1.0.0Updated Nov 3, 2026

Live silver price per gram by fineness and currency, junk silver coin value, gold silver ratio.

The publisher's own server: PriceWin

VerifiedStreamable HTTPWeb executable

Overview

Silver Price Per Gram's hosted MCP server (silver-price-per-gram-mcp.lipmichal.workers.dev); no sign-in required; Streamable HTTP; 4 tools.

No AI overview yet: these facts come from the registry entry and the server itself.

Endpoint
silver-price-per-gram-mcp.lipmichal.workers.dev
Last checked

Installation

In SourceWeft

  1. Open Silver Price Per Gram MCP in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/io.github.theluckystrike%2Fsilver-price-per-gram-mcp/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "silver-price-per-gram": {
      "type": "http",
      "url": "https://silver-price-per-gram-mcp.lipmichal.workers.dev/mcp"
    }
  }
}

README

silver-price-per-gram-mcp

The live silver price per gram for AI assistants, by fineness and currency, with sterling melt value, US junk silver coin value and the gold to silver ratio.

This is a Model Context Protocol (MCP) server. It reads the silver spot price at call time and converts it with central-bank FX rates for about 160 currencies. It needs no API key.

Tools

ToolWhat it returns
get_silver_price_per_gramSilver price per gram, troy ounce, kilogram and tola for fine .999, Britannia .9584, sterling .925, coin .900 and 800 silver in any currency, with the spot time stamp and FX date.
calculate_silver_valueMelt value of a silver item (sterling flatware, jewellery, bars, scrap) from weight, unit and fineness, with an optional dealer spread percent.
calculate_junk_silver_valueMelt value of US 90% dimes, quarters and halves, 40% Kennedy halves, 35% war nickels, Morgan and Peace dollars and American Silver Eagles, by coin count or by dollars of face value.
get_gold_silver_ratioLive gold to silver ratio, with both spot prices per troy ounce and per gram in any currency.

Every result has structured JSON, a one-paragraph summary, as_of, source and more (the matching page on goldgramprice.com).

What it knows that your model does not

  • Today's silver price. Spot moves every minute and a model's training data is months old.
  • Today's exchange rate for EUR, GBP, INR, CAD, MXN and about 150 more currencies.
  • Exact coin silver content from statute. A 1965 to 1970 Kennedy half holds 4.6 g of silver (Coinage Act of 1965), not the 90% of earlier halves. One dollar face of pre-1965 dimes, quarters or halves holds 22.5 g, which is 0.723392 troy ounces.
  • What the words mean. "Sterling" needs at least 925 parts per thousand of silver and "coin silver" at least 900 (16 CFR 23.5). Britannia silver is 958.4 (UK Hallmarking Act 1973).
  • Exact units. A troy ounce is 31.1034768 g (NIST Handbook 44). A kitchen-scale ounce is 28.349523125 g. Mixing them up is a 9.7% error.

Install

Hosted (Claude.ai custom connector, ChatGPT developer mode)

Paste this URL. No token, no sign-up.

https://silver-price-per-gram-mcp.lipmichal.workers.dev/mcp

Claude Code

claude mcp add --transport http silver-price https://silver-price-per-gram-mcp.lipmichal.workers.dev/mcp

Or run it locally over stdio:

claude mcp add silver-price -- npx -y github:theluckystrike/silver-price-per-gram-mcp

Claude Desktop

Add to claude_desktop_config.json:

json
{  "mcpServers": {    "silver-price": { "command": "npx", "args": ["-y", "github:theluckystrike/silver-price-per-gram-mcp"] }  }}

Cursor

Add to ~/.cursor/mcp.json:

json
{  "mcpServers": {    "silver-price": { "url": "https://silver-price-per-gram-mcp.lipmichal.workers.dev/mcp" }  }}

VS Code

Add to .vscode/mcp.json:

json
{  "servers": {    "silver-price": { "type": "http", "url": "https://silver-price-per-gram-mcp.lipmichal.workers.dev/mcp" }  }}

Node 20 or newer is needed for the local stdio version.

Example prompts

  • "What is the silver price per gram today?"
  • "What is 925 sterling silver worth per gram in pounds?"
  • "I have a sterling tea set that weighs 1.8 kg. What is the melt value, and what might a buyer offer at a 20% spread?"
  • "How much is 40 pre-1965 quarters and 3 Morgan dollars worth in silver?"
  • "What is the gold to silver ratio right now?"

Data sources

Full list with fetch dates in DATA_SOURCES.md.

  • Spot prices from gold-api.com, the same feed goldgramprice.com uses. Its terms allow commercial use and ask callers not to send several requests per second, so the hosted server caches each price for 5 minutes.
  • FX rates from Frankfurter, blended from the ECB and other central banks. Cached for 1 hour. Rates update once a working day.
  • Fineness rules from 16 CFR 23.5 and the UK Hallmarking Act 1973 Schedule 2. Coin content from the Coinage Act of 1965 and 31 U.S.C. 5112(e). Unit constants from NIST Handbook 44.

Limitations

  • Prices are spot (melt) values. Dealers sell coins and bars above spot and buy below it. Rare or graded coins can be worth far more than melt. The tools say so in every answer.
  • Coin silver content is the as-minted amount. Worn circulated coins hold slightly less; dealers often use 0.715 troy ounces per dollar face for worn 90% coin.
  • The spot price can be up to 5 minutes old on the hosted server. FX rates are daily reference rates, not live market quotes.
  • When a price feed is down, the tool returns a clear error instead of a stale or remembered number.

More

Silver price per gram, junk silver melt value, gold karat calculators and gold price history are on goldgramprice.com.

Part of the Zovo MCP collection: https://mcp.zovo.one

Development

npm installnpm test            # builds, then runs the fixture tests against saved upstream payloadsnode scripts/smoke-stdio.mjs   # live stdio check, one real call per toolnpx wrangler deploy            # Cloudflare Worker, Streamable HTTP at /mcp

License

MIT

Source: README.md at commit db613c4

Tools

4

get_silver_price_per_gram

Get silver price per gram

Today's silver price per gram, per troy ounce, per kilogram and per tola, read live from the silver spot market, for fine .999, Britannia .9584, sterling .925, coin .900 and 800 silver, in any of about 160 currencies (central-bank FX). Returns the spot time stamp, FX date and sources. Your training data cannot know today's silver price. Omit fineness to get every grade.

Parameterscurrencyfineness

calculate_silver_value

Calculate silver melt value

Melt value of a silver item (sterling flatware, tea set, jewellery, bar, round, scrap) from its weight, unit and fineness at the live silver spot price, in any currency. Optional dealer_spread_percent returns the likely buyer offer. Sterling means at least 925/1000 silver under 16 CFR 23.5. Default fineness is sterling.

Parametersunitweightrequiredcurrencyfinenessdealer_spread_percent

calculate_junk_silver_value

Calculate junk silver coin value

Melt value of US silver coins at the live silver spot: pre-1965 90% dimes, quarters and halves, 1965-1970 40% Kennedy halves (4.6 g silver, Coinage Act of 1965), 1942-1945 35% war nickels, Morgan and Peace dollars and American Silver Eagles. Pass coins with counts, or face_value_90 for a bag of mixed 90% coin (1 dollar face = 22.5 g silver). Returns silver ounces per coin, totals and melt per dollar face.

Parameterscoinscurrencyface_value_90dealer_spread_percent

get_gold_silver_ratio

Get gold to silver ratio

Live gold to silver ratio (ounces of silver one ounce of gold buys), with both spot prices per troy ounce and per gram in any currency. Read now from the spot feed; the ratio moves every minute.

Parameterscurrency

Version history

1
  1. v1.0.0LatestNov 3, 2026

Score

100% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listedRequired15 pts
  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts
  • License10 pts

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