Silver Price Per Gram MCP
io.github.theluckystrike/silver-price-per-gram-mcptheluckystrikestreamable-httpv1.0.0Scanned
Live silver price per gram by fineness and currency, junk silver coin value, gold silver ratio.
4 tools: 2 change things and 2 only read.
- Reads private data · 0
- Reads text others write · 4
- Can send data out · 0
- No findings
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
Changes things 2Claude Code: ask
calculate_junk_silver_valueMelt 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 …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 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.
Annotations the server declares
- title: Junk silver value
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: true
calculate_silver_valueMelt 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.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 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.
Annotations the server declares
- title: Silver melt value
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: true
Only reads 2Show 2 read-only tools
get_gold_silver_ratioLive 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.Reads text others writeNo findings
Why it is in this group
- The name "get_gold_silver_ratio" 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 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.
Annotations the server declares
- title: Gold silver ratio
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: true
get_silver_price_per_gramToday'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 si…Reads text others writeNo findings
Why it is in this group
- The name "get_silver_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 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.
Annotations the server declares
- title: Silver price per gram
- 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 or outbound.
- Reads private data0
- Reads files, mail, messages, databases, secrets, calendars or repositories.
- Reads text others write4
- Brings in text someone else can write: web pages, inbound email, messages, issues and comments.
- Can send data out0
- Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL.
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.
No check matched anything in these tool definitions. That is not a safety guarantee.
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.
Install
Pinned to version 1.0.0. Values in angle brackets are yours to fill in.
claude mcp add --transport http silver-price-per-gram https://silver-price-per-gram-mcp.lipmichal.workers.dev/mcpclaude mcp add --transport http silver-price-per-gram https://silver-price-per-gram-mcp.lipmichal.workers.dev/mcpRun 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.
{
"permissions": {
"allow": [
"mcp__silver-price-per-gram__get_silver_price_per_gram",
"mcp__silver-price-per-gram__get_gold_silver_ratio"
],
"ask": [
"mcp__silver-price-per-gram__calculate_silver_value",
"mcp__silver-price-per-gram__calculate_junk_silver_value"
],
"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 silver-price-per-gram. Review it before you use it.
Capability tags behind 4 rules
- mcp__silver-price-per-gram__get_silver_price_per_gram untrusted-input
- mcp__silver-price-per-gram__calculate_silver_value untrusted-input
- mcp__silver-price-per-gram__calculate_junk_silver_value untrusted-input
- mcp__silver-price-per-gram__get_gold_silver_ratio untrusted-input
Pin
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/silver-price-per-gram-mcp/verify?hash=8f059d727f6d806e299ff56def344a5b629bee0cccd3a77760a893ef672a8429" | jq -e '.changed == false'Pinned hash 8f059d727f6d, from Nov 3, 2026, 08:18 UTC.
Watch
Get told when its tools change: a new tool, a new description, a new class.
https://anlyon.dev/servers/io.github.theluckystrike/silver-price-per-gram-mcp/changes.xmlAn Atom feed. Works in any feed reader or Slack's RSS app.
Badge
[](https://anlyon.dev/servers/io.github.theluckystrike/silver-price-per-gram-mcp)Source: MCP Registry · repository. Synced Nov 3, 2026, 08:18 UTC.