Bullion Trading: Gold & Silver

com.bulliontradingllc/gold-silverbulliontradingllc.comstreamable-httpv1.0.1Scanned 1 hour ago

Live spot, premiums, buy-back rates and the bullion catalog of a New York dealer. Read-only.

18 tools: 3 change things and 15 only read.

Reads private data · 1
Reads text others write · 2
Can send data out · 0
No findings

Anlyon alternative

3 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.

18 tools

Changes things 3Creates or changes something that can be changed back.Claude Code: ask

estimate_sales_taxWhether a US state charges sales tax on bullion, the threshold if any, and an estimate for an order amount.No 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.
Description, as the server wrote it
Whether a US state charges sales tax on bullion, the threshold if any, and an estimate for an order amount. Estimate only; the final tax is shown at checkout. Includes the state page link.
Annotations the server declares
- title: Estimate sales tax
- readOnlyHint: true
- openWorldHint: false
- destructiveHint: false
- idempotentHint: true
plan_budgetBest-value options for a budget in USD and a metal: which product and how many pieces fit, the payment method the total assumes (check/wire from $1,000, otherwise card/PayPal at +5…No 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.
Description, as the server wrote it
Best-value options for a budget in USD and a metal: which product and how many pieces fit, the payment method the total assumes (check/wire from $1,000, otherwise card/PayPal at +5%), the total and the premium over spot. Goal can favour the lowest premium, popular coins, or gift-friendly items. Before shipping and tax.
Annotations the server declares
- title: Plan a budget
- readOnlyHint: true
- openWorldHint: false
- destructiveHint: false
- idempotentHint: true
ratio_swapThe current gold/silver ratio (ounces of silver one ounce of gold buys at spot), with an optional swap: give gold_oz to see the silver ounces it equals, or silver_oz for the gold o…No 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.
Description, as the server wrote it
The current gold/silver ratio (ounces of silver one ounce of gold buys at spot), with an optional swap: give gold_oz to see the silver ounces it equals, or silver_oz for the gold ounces. Spot-to-spot only; premiums and buy-back spreads are not included.
Annotations the server declares
- title: Gold/silver ratio swap
- readOnlyHint: true
- openWorldHint: false
- destructiveHint: false
- idempotentHint: true

Only reads 15Looks things up and changes nothing.Show 15 read-only tools

find_bullionThe "Find your bullion" picker: products matching a metal, form, size, purpose or sort order, as on bulliontradingllc.com/find-your-bullion/, with both prices, in/out of stock and …No findings
Why it is in this group
- The name "find_bullion" says "find": a word for reading.
Description, as the server wrote it
The "Find your bullion" picker: products matching a metal, form, size, purpose or sort order, as on bulliontradingllc.com/find-your-bullion/, with both prices, in/out of stock and the best price per ounce. Sizes look like "1-oz", "1-10-oz", "10-oz", "1-kilo", "1-gram".
Annotations the server declares
- title: Find bullion
- readOnlyHint: true
- openWorldHint: false
- destructiveHint: false
- idempotentHint: true
find_giftGold and silver gift ideas for traditions and occasions (for example Pidyon HaBen or Dhanteras): what the tradition calls for, the guide page, and suggested products with both pric…No findings
Why it is in this group
- The name "find_gift" says "find": a word for reading.
Description, as the server wrote it
Gold and silver gift ideas for traditions and occasions (for example Pidyon HaBen or Dhanteras): what the tradition calls for, the guide page, and suggested products with both prices.
Annotations the server declares
- title: Find a gift
- readOnlyHint: true
- openWorldHint: false
- destructiveHint: false
- idempotentHint: true
get_buyback_priceWhat Bullion Trading LLC pays when you sell bullion to us: posted per-item rates (gold, platinum and palladium at spot bid minus 3% or 5%; silver at spot bid minus $3 or $5 per oz)…No findings
Why it is in this group
- The name "get_buyback_price" says "get": a word for reading.
Description, as the server wrote it
What Bullion Trading LLC pays when you sell bullion to us: posted per-item rates (gold, platinum and palladium at spot bid minus 3% or 5%; silver at spot bid minus $3 or $5 per oz). Posted rates, not locked quotes. $1,000 minimum per sale.
Annotations the server declares
- title: Get buy-back price
- readOnlyHint: true
- openWorldHint: false
- destructiveHint: false
- idempotentHint: true
get_dealsProducts on the Bullion Trading LLC deals page today, with why each one is a deal (for example the lowest premium in its format).No findings
Why it is in this group
- The name "get_deals" says "get": a word for reading.
Description, as the server wrote it
Products on the Bullion Trading LLC deals page today, with why each one is a deal (for example the lowest premium in its format). Both prices and in/out of stock.
Annotations the server declares
- title: Get deals
- readOnlyHint: true
- openWorldHint: false
- destructiveHint: false
- idempotentHint: true
get_market_newsThe precious-metals market news summary for a day (default the latest): market mood, headline, a short summary, key points, source headlines with links, and the weekly recap link.No findings
Why it is in this group
- The name "get_market_news" says "get": a word for reading.
Description, as the server wrote it
The precious-metals market news summary for a day (default the latest): market mood, headline, a short summary, key points, source headlines with links, and the weekly recap link.
Annotations the server declares
- title: Get market news
- readOnlyHint: true
- openWorldHint: false
- destructiveHint: false
- idempotentHint: true
get_mint_infoAbout a mint or refiner (Royal Canadian Mint, PAMP, US Mint…): country, a short summary, how many products we carry and a sample with both prices.No findings
Why it is in this group
- The name "get_mint_info" says "get": a word for reading.
Description, as the server wrote it
About a mint or refiner (Royal Canadian Mint, PAMP, US Mint…): country, a short summary, how many products we carry and a sample with both prices. Give a slug or search words; omit both to list mints.
Annotations the server declares
- title: Get mint info
- readOnlyHint: true
- openWorldHint: false
- destructiveHint: false
- idempotentHint: true
get_policiesBullion Trading LLC policies in the store's own wording: shipping (US only), payment methods and limits, returns, state minimums, NYC pickup, and selling to us.No findings
Why it is in this group
- The name "get_policies" says "get": a word for reading.
Description, as the server wrote it
Bullion Trading LLC policies in the store's own wording: shipping (US only), payment methods and limits, returns, state minimums, NYC pickup, and selling to us.
Annotations the server declares
- title: Get policies
- readOnlyHint: true
- openWorldHint: false
- destructiveHint: false
- idempotentHint: true
get_premiumsToday's typical and lowest premium over the Ask spot for each standard coin and bar format (1 oz gold coins, 1 oz gold bars, silver rounds, kilo bars…) at Bullion Trading LLC, with…No findings
Why it is in this group
- The name "get_premiums" says "get": a word for reading.
Description, as the server wrote it
Today's typical and lowest premium over the Ask spot for each standard coin and bar format (1 oz gold coins, 1 oz gold bars, silver rounds, kilo bars…) at Bullion Trading LLC, with the 2-year median and the lowest-premium product.
Annotations the server declares
- title: Get premiums
- readOnlyHint: true
- openWorldHint: false
- destructiveHint: false
- idempotentHint: true
get_price_historyPrice history for either one product (its past check/wire prices) or a metal (daily closes, up to a 5-year span).No findings
Why it is in this group
- The name "get_price_history" says "get": a word for reading.
Description, as the server wrote it
Price history for either one product (its past check/wire prices) or a metal (daily closes, up to a 5-year span). Give product, or metal with optional from/to dates (default: the last 12 months).
Annotations the server declares
- title: Get price history
- readOnlyHint: true
- openWorldHint: false
- destructiveHint: false
- idempotentHint: true
get_productFull details for one product by id, slug or product URL: both prices, quantity price tiers, in/out of stock, metal, weight, purity, mint, a short description, what we pay to buy it…Reads text others writeNo findings
Why it is in this group
- The name "get_product" says "get": a word for reading.
What it can reach
- untrusted-inputThe description's first sentence says "url": it reads web pages, which anyone can write.
Description, as the server wrote it
Full details for one product by id, slug or product URL: both prices, quantity price tiers, in/out of stock, metal, weight, purity, mint, a short description, what we pay to buy it back (if we do) and a price-history link.
Annotations the server declares
- title: Get product
- readOnlyHint: true
- openWorldHint: false
- destructiveHint: false
- idempotentHint: true
get_spot_pricesCurrent spot prices per troy ounce in USD for gold, silver, platinum and palladium, as used by Bullion Trading LLC: the Ask (what our prices and premiums are measured over) and the…No findings
Why it is in this group
- The name "get_spot_prices" says "get": a word for reading.
Description, as the server wrote it
Current spot prices per troy ounce in USD for gold, silver, platinum and palladium, as used by Bullion Trading LLC: the Ask (what our prices and premiums are measured over) and the Bid (what buy-back rates start from), with the change since the previous 5 pm New York close.
Annotations the server declares
- title: Get spot prices
- readOnlyHint: true
- openWorldHint: false
- destructiveHint: false
- idempotentHint: true
get_store_infoBullion Trading LLC contact and location: address on West 47th Street (New York), phone, emails, opening hours (New York time), year founded, licensing and map link.Reads private dataReads text others writeNo findings
Why it is in this group
- The name "get_store_info" says "get": a word for reading.
What it can reach
- private-dataThe description's first sentence says "contact": it reads contacts.
- untrusted-inputThe description's first sentence says "email": it reads inbound email, which other people can write.
Description, as the server wrote it
Bullion Trading LLC contact and location: address on West 47th Street (New York), phone, emails, opening hours (New York time), year founded, licensing and map link.
Annotations the server declares
- title: Get store info
- readOnlyHint: true
- openWorldHint: false
- destructiveHint: false
- idempotentHint: true
list_best_sellersThe best-selling products at Bullion Trading LLC, optionally for one metal.No findings
Why it is in this group
- The name "list_best_sellers" says "list": a word for reading.
Description, as the server wrote it
The best-selling products at Bullion Trading LLC, optionally for one metal. Both prices and in/out of stock.
Annotations the server declares
- title: List best sellers
- readOnlyHint: true
- openWorldHint: false
- destructiveHint: false
- idempotentHint: true
list_new_arrivalsProducts newly added to the Bullion Trading LLC catalog, optionally for one metal.No findings
Why it is in this group
- The name "list_new_arrivals" says "list": a word for reading.
Description, as the server wrote it
Products newly added to the Bullion Trading LLC catalog, optionally for one metal. Both prices and in/out of stock.
Annotations the server declares
- title: List new arrivals
- readOnlyHint: true
- openWorldHint: false
- destructiveHint: false
- idempotentHint: true
search_productsSearch the Bullion Trading LLC catalog of gold, silver, platinum and palladium coins, bars and rounds.No findings
Why it is in this group
- The name "search_products" says "search": a word for reading.
Description, as the server wrote it
Search the Bullion Trading LLC catalog of gold, silver, platinum and palladium coins, bars and rounds. Filter by metal, type, price range and stock; sort by price, popularity or newest. Returns both prices (check/wire and card/PayPal, +5%) and in/out of stock.
Annotations the server declares
- title: Search products
- readOnlyHint: true
- openWorldHint: false
- destructiveHint: false
- idempotentHint: 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 outbound.

Reads private data1: Reads files, mail, messages, databases, secrets, calendars or repositories.; get_store_info
Reads text others write2: Brings in text someone else can write: web pages, inbound email, messages, issues and comments.; get_product
get_store_info
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.

All changes to this server

Install

Pinned to version 1.0.1. Values in angle brackets are yours to fill in.

claude mcp add --transport http gold-silver https://mcp.bulliontradingllc.com/mcp

claude mcp add --transport http gold-silver https://mcp.bulliontradingllc.com/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-silver__get_spot_prices",
      "mcp__gold-silver__search_products",
      "mcp__gold-silver__get_product",
      "mcp__gold-silver__find_bullion",
      "mcp__gold-silver__get_premiums",
      "mcp__gold-silver__get_buyback_price",
      "mcp__gold-silver__get_store_info",
      "mcp__gold-silver__get_policies",
      "mcp__gold-silver__get_deals",
      "mcp__gold-silver__get_price_history",
      "mcp__gold-silver__get_market_news",
      "mcp__gold-silver__list_best_sellers",
      "mcp__gold-silver__list_new_arrivals",
      "mcp__gold-silver__find_gift",
      "mcp__gold-silver__get_mint_info"
    ],
    "ask": [
      "mcp__gold-silver__estimate_sales_tax",
      "mcp__gold-silver__plan_budget",
      "mcp__gold-silver__ratio_swap"
    ],
    "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-silver. Review it before you use it.

Capability tags behind 2 rules

mcp__gold-silver__get_product untrusted-input
mcp__gold-silver__get_store_info private-data, untrusted-input

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/com.bulliontradingllc/gold-silver/verify?hash=7fc69c1142a562f78bcabf4e4f33ffd4981ad45ed214f27230d445f77927fd2e" | jq -e '.changed == false'

Pinned hash 7fc69c1142a5, from Nov 4, 2026, 03:17 UTC.

Watch

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

https://anlyon.dev/servers/com.bulliontradingllc/gold-silver/changes.xml

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Badge

[![anlyon.dev](https://anlyon.dev/badge/com.bulliontradingllc/gold-silver.svg)](https://anlyon.dev/servers/com.bulliontradingllc/gold-silver)

Source: MCP Registry. Synced Nov 4, 2026, 03:17 UTC.