Gold Price Per Gram MCP

io.github.theluckystrike/gold-price-per-gram-mcptheluckystrikestreamable-httpv1.0.0Scanned 48 minutes ago

Live gold price per gram by karat and currency, metal prices, jewelry melt value, unit conversion.

4 tools: 1 do something that can't be undone, 1 change things and 2 only read.

Reads private data · 0
Reads text others write · 3
Can send data out · 1
1 finding

Anlyon alternative

2 of these tools change something. Run those as governed actions.

Declare what an action changes, and Anlyon puts it under a shared limit, binds every approval to the exact request, and grades the outcome. It works on any HTTPS API you can describe as an action.

Anlyon does not run, proxy or govern this MCP server. A tool your own code calls directly is not routed through Anlyon and is not governed by it.

Import an OpenAPI spec →

Tools

Grouped by what each tool does, most consequential first. Open one for its reasons and full description; descriptions are the publisher's own words.

4 tools

Can't be undone 1Sends, pays, publishes or merges: once done, it cannot be taken back.Claude Code: ask

convert_gold_unitsConvert a gold weight between gram, kilogram, troy ounce, pennyweight, grain, avoirdupois ounce, tola, Thai baht (bullion and jewellery), Vietnamese chi and luong, Hong Kong gold t…Can send data out1 finding
Why it is in this group
- The name "convert_gold_units" says "convert": a word for a change.
- The input addresses people (input.to): what it sends cannot be taken back.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
What it can reach
- outboundThe input takes a destination (input.to): what the tool writes goes there.
Findings
- Warn
  The server marks "convert_gold_units" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".
  Matched text
  annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The name "convert_gold_units" says "convert": a word for a change.
  What this check looks for
Description, as the server wrote it
Convert a gold weight between gram, kilogram, troy ounce, pennyweight, grain, avoirdupois ounce, tola, Thai baht (bullion and jewellery), Vietnamese chi and luong, Hong Kong gold tael, Taiwan tael and China liang. Uses exact defined constants (1 troy ounce = 31.1034768 g, 1 grain = 64.79891 mg, NIST Handbook 44) and returns the definition and source of each unit. Omit "to" to get every unit.
Annotations the server declares
- title: Convert gold units
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false

Changes things 1Creates or changes something that can be changed back.Claude Code: ask

calculate_jewelry_valueMelt value of a gold item (ring, chain, bracelet, scrap) from its weight, unit and karat at the live spot price, in any currency.Reads text others writeNo findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Description, as the server wrote it
Melt value of a gold item (ring, chain, bracelet, scrap) from its weight, unit and karat at the live spot price, in any currency. Optional dealer_spread_percent returns the likely buyer offer. The result states that melt value is not the retail or buyback price.
Annotations the server declares
- title: Jewelry melt value
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: true

Only reads 2Looks things up and changes nothing.Show 2 read-only tools

get_gold_price_per_gramToday's gold price per gram, per troy ounce, per tola and per kilogram, read live from the gold spot market, for 24K, 22K, 21K, 18K, 14K, 10K and 9K gold, in any of about 160 curre…Reads text others writeNo findings
Why it is in this group
- The name "get_gold_price_per_gram" says "get": a word for reading.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Description, as the server wrote it
Today's gold price per gram, per troy ounce, per tola and per kilogram, read live from the gold spot market, for 24K, 22K, 21K, 18K, 14K, 10K and 9K gold, in any of about 160 currencies (central-bank FX). Returns the spot time stamp, the FX date and the sources. Your training data cannot know today's gold price. Omit karat to get every karat.
Annotations the server declares
- title: Gold price per gram
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: true
get_metal_pricesLive spot prices of gold (XAU), silver (XAG), platinum (XPT) and palladium (XPD) per troy ounce, per gram and per kilogram, in any major currency.Reads text others writeNo findings
Why it is in this group
- The name "get_metal_prices" says "get": a word for reading.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Description, as the server wrote it
Live spot prices of gold (XAU), silver (XAG), platinum (XPT) and palladium (XPD) per troy ounce, per gram and per kilogram, in any major currency. A metal whose feed is down is reported with its error instead of failing the whole call.
Annotations the server declares
- title: Metal prices
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: true

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Exfil surface

Which tools read private data, which read text someone else can write, and which can send data out. One of each is a path a prompt injection can use.

No private-data, untrusted-input, outbound path in this server alone: no tool is tagged private-data.

Reads private data0: Reads files, mail, messages, databases, secrets, calendars or repositories.
Reads text others write3: Brings in text someone else can write: web pages, inbound email, messages, issues and comments.; calculate_jewelry_value
get_gold_price_per_gram
get_metal_prices
Can send data out1: Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL.; convert_gold_units

Other servers in the same agent add their own tools to these paths. Audit your whole setup to see them together.

Findings

Matches of fixed checks, with the text they matched.

1 warn

Warnconvert_gold_units
The server marks "convert_gold_units" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".
Matched text
annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The name "convert_gold_units" says "convert": a word for a change.
What this check looks for

History

Changes to its tool definitions and to its remote endpoint, newest first.

No change seen yet. Its tools are rescanned every day, and a remote endpoint is looked at once a week.

All changes to this server

Install

Pinned to version 1.0.0. Values in angle brackets are yours to fill in.

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

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

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change or a way out, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json

{
  "permissions": {
    "allow": [
      "mcp__gold-price-per-gram__get_gold_price_per_gram",
      "mcp__gold-price-per-gram__get_metal_prices"
    ],
    "ask": [
      "mcp__gold-price-per-gram__calculate_jewelry_value",
      "mcp__gold-price-per-gram__convert_gold_units"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. A read that can send data out (it takes a URL, say) asks first too. It assumes the server is installed as gold-price-per-gram. Review it before you use it.

Capability tags behind 4 rules

mcp__gold-price-per-gram__get_gold_price_per_gram untrusted-input
mcp__gold-price-per-gram__get_metal_prices untrusted-input
mcp__gold-price-per-gram__calculate_jewelry_value untrusted-input
mcp__gold-price-per-gram__convert_gold_units outbound

Keep the decision: fail CI when the tools change, follow every change, or show a badge.

Pin in CI

Fail a build when the tools you reviewed are not the tools the server serves today.

curl -s "https://anlyon.dev/api/v1/servers/io.github.theluckystrike/gold-price-per-gram-mcp/verify?hash=e6553e42e5486faefea3839b25bcf388f0fdb86a59d57f6b7354ac88f8773793" | jq -e '.changed == false'

Pinned hash e6553e42e548, from Oct 30, 2026, 01:18 UTC.

Watch

Get told when its tools change: a new tool, a new description, a new class.

https://anlyon.dev/servers/io.github.theluckystrike/gold-price-per-gram-mcp/changes.xml

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Badge

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Source: MCP Registry · repository. Synced Oct 30, 2026, 01:17 UTC.