StackerScan

Live and historical precious-metals spot prices, observed dealer premiums, and the Goldback rate — no auth, no key.

CommunityOnlineNo sign-inGlobalFreeRead-only

What it can do

  • Get Spot Prices: Current and previous-session spot prices for gold, silver, platinum, palladium, copper and nickel, in any supported currency and per troy ounce or gram.
  • Get Observed Premiums: Rolling fine-metal-weighted median asking premiums over spot, observed from real marketplace listings rather than quoted by a dealer.
  • Get Price History: Daily historical series for charting — one metal, the Goldback, or one PCGS-numbered coin at one grade.

What data it sees

Do you need an account

No: the server works without sign-in

Live and historical precious-metals spot prices, observed dealer premiums, and the Goldback rate — no auth, no key.

Five read-only tools backed by the public StackerScan API: current spot prices (gold, silver, platinum, palladium, copper, nickel), observed dealer premiums from real marketplace listings, daily price history (metals, Goldback, PCGS-numbered coins), the Goldback exchange rate, and the supported-currency catalog.

Docs: https://www.stackerscan.com/docs · OpenAPI: https://www.stackerscan.com/openapi.json · Support: support@stackerscan.com

How to connect

How to connect StackerScan to Claude

The server address to paste into Claude settings:

https://stackerscan--stackerscan.run.tools

  1. Open Claude (claude.ai or the desktop app).
  2. Go to Settings → Connectors.
  3. Click Add custom connector.
  4. Paste the server address copied below into Remote MCP server URL and click Add.
  5. In a chat, click + → Connectors and switch the new connector on.

Custom connectors are available on Free, Pro, Max, Team and Enterprise plans (Free is limited to one). On Team and Enterprise an organization Owner adds the connector first under Organization settings → Connectors.

Authorization

After you click Add, a sign-in window for the service opens. Sign in with your own account and approve access. Claude never sees your password.

How to connect StackerScan to ChatGPT

The server address to paste into ChatGPT settings:

https://stackerscan--stackerscan.run.tools

  1. Open ChatGPT in a browser (chatgpt.com). A Plus, Pro, Business, Enterprise or Edu plan is required.
  2. Turn on developer mode once: Settings → Apps → Advanced settings → Developer mode.
  3. Open Settings → Connectors and click Create.
  4. Fill in the form: Name (anything), Description (one line about what the service does), MCP server URL (copy it below).
  5. Under Authentication choose OAuth if the service requires sign-in, otherwise None. Click Create.
  6. In a new chat open + → Apps/Connectors and enable the connector.

OpenAI has renamed this section before (Connectors → Apps/Plugins). If the label differs, search settings for "developer mode". On Business/Enterprise workspaces an admin must allow custom connectors first.

Authorization

On first use ChatGPT opens the service's sign-in window. Sign in and approve access.

How to connect StackerScan to Cursor

The server address to paste into Cursor settings:

https://stackerscan--stackerscan.run.tools

Fastest: click Open in Cursor below and confirm the prompt.

Manually:

  1. In Cursor open Settings → Cursor Settings → MCP and click Add new global MCP server.
  2. Paste the JSON copied below into ~/.cursor/mcp.json (per project: .cursor/mcp.json in the repo root).
  3. Save the file. The server appears in the MCP list; authorize it there if asked.

Authorization

If the service needs sign-in, an authorize button appears next to the server in the MCP list.

Server tool list (5)

Raw names from tools/list. Only developers need these.

get_spot_pricesCurrent and previous-session spot prices for gold, silver, platinum, palladium, copper and nickel, in any supported currency and per troy ounce or gram.
get_observed_premiumsRolling fine-metal-weighted median asking premiums over spot, observed from real marketplace listings rather than quoted by a dealer.
get_price_historyDaily historical series for charting — one metal, the Goldback, or one PCGS-numbered coin at one grade.
get_goldback_rateThe latest Goldback premium multiple over its gold content, and the exchange rate that follows from it.
list_supported_currenciesThe live list of codes every `currency`/`base` parameter accepts — ISO 4217 fiat plus BTC and the metal codes.