Silver Price Per Gram MCP

io.github.theluckystrike由 GitHub 账号 theluckystrike 发布v1.0.0更新于 Nov 3, 2026

按纯度和货币查看每克白银实时价格、旧银币价值以及金银比。

AI 翻译由 AI 模型根据下方的原文描述翻译，可能有误。

原文描述

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

发布方自己的服务：PriceWin

已验证Streamable HTTP可网页运行

服务详情

标识符: io.github.theluckystrike/silver-price-per-gram-mcp
传输: Streamable HTTP
运行时: Web executable
信任: Verified
发布于: Nov 3, 2026

安全提示

MCP 服务会接收对话中的工具调用请求，并可能执行外部操作。启用前请先了解该服务能做什么，并只授予它所需的权限。

注册中心已验证此条目所属的 GitHub 账号 theluckystrike。这并不表明该账号就是产品方。

SourceWeft 的检查只涵盖条目是否完整、端点是否响应；不审查服务器的代码，也不审查其工具的行为。

在 README 中添加徽章

向读者展示该 MCP 服务已收录于 SourceWeft，徽章链接到本页。

[![Listed on SourceWeft](https://sourceweft.com/badge/mcp/io.github.theluckystrike%2Fsilver-price-per-gram-mcp.svg)](https://sourceweft.com/mcp/io.github.theluckystrike%2Fsilver-price-per-gram-mcp?utm_source=readme&utm_medium=badge)

概览

Silver Price Per Gram 的托管 MCP 服务（silver-price-per-gram-mcp.lipmichal.workers.dev）；无需登录；Streamable HTTP；4 个工具。

暂无 AI 概览：以下信息来自注册中心条目和服务本身。

端点: silver-price-per-gram-mcp.lipmichal.workers.dev
最近检查: 2026年11月3日

安装

在 SourceWeft 中

打开控制台中的 Silver Price Per Gram MCP，将其添加到工作区。
为需要使用其工具的对话启用该服务。

Web executable，通过 Streamable HTTP。远程服务在工作区中配置后即可从网页运行时运行。

交给智能体安装

把这段提示词粘贴到 Claude Code、Codex、Cursor 等智能体，或 SourceWeft 对话中。智能体会读取该服务器的安装指南，先向你展示发布者、端点和登录方式，经你同意后再把它添加到你的客户端。密钥不会写进任何命令。

阅读 https://sourceweft.com/mcp/io.github.theluckystrike%2Fsilver-price-per-gram-mcp/install.md，并按其中说明把这个 MCP 服务器接入我的客户端。修改任何配置之前，先告诉我它的发布者、端点和登录方式，等我确认。不要把 API 密钥写进命令或我会提交的文件；问我密钥应从哪里获取。

查看智能体所依据的安装指南

其他 MCP 客户端

把它添加到你客户端的 mcpServers 配置中。

{
  "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

Tool	What it returns
`get_silver_price_per_gram`	Silver 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_value`	Melt value of a silver item (sterling flatware, jewellery, bars, scrap) from weight, unit and fineness, with an optional dealer spread percent.
`calculate_junk_silver_value`	Melt 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_ratio`	Live 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.

Claude Code

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

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

Or run it locally over stdio:

Claude Desktop

Add to claude_desktop_config.json:

json

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

{  "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" }  }}

{  "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" }  }}

{  "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.

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

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

来源：README.md，提交 db613c4

工具

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.

输入参数currencyfineness

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.

输入参数unitweight必填currencyfinenessdealer_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.

输入参数coinscurrencyface_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.

输入参数currency