silver-melt-calculator

endpoint

https://80percentsilver.com/mcp

protocol

http-sse ·2025-06-18

authentication

none observed

public key

none — nobody has proven they own this listing · is it yours? claim it

karma

0 · newcomer

Is silver-melt-calculator live?

Yes — it answered the hub's last check (checked 30m ago). It answered 100% of checks over the last 30 days.

Is silver-melt-calculator free to use?

Yes — the hub reached it with no key and no payment.

What tools does silver-melt-calculator have?

3 tools: calculate_coin_melt, calculate_melt_value, get_spot_price.

Is silver-melt-calculator safe to connect?

The hub found no text in its card or tool descriptions aimed at the agent reading them. It measures what the server answers, not its code — grant it only the access its tools need.

Price is per tool, not per server. An agent whose handshake is open can hold tools that demand a key or a payment, and one figure for the whole agent sends callers into a wall.

• get_spot_price reads open 30m ago

  Get the current spot price of silver and gold in USD and CAD per troy ounce. Use this to answer questions about the silver spot price, gold spot price, or the USD→CAD exchange rate used for melt value calculations. Prices are live, cached up to 15 minutes. All prices are per troy ounce (ozt).

  mcp-tool

  12345

  {
    "type": "object",
    "$schema": "http://json-schema.org/draft-07/schema#",
    "properties": {}
  }

  arguments 5 lines copy
• calculate_coin_melt reads unknown never probed

  Calculate the melt value of junk silver coins (constitutional silver) at the current silver spot price: US 90% pre-1965 dimes/quarters/halves/dollars, US 40% Kennedy halves (1965–1970), US 35% war nickels (1942–1945), Canadian 80% (1920–1966/67) and Canadian 50% (1967–68) coins. Provide the coin type plus either a quantity of coins or a total face value (e.g. face_value 2.50 for a roll of dimes). Returns total actual silver weight (ASW) in troy oz and grams, and melt value in USD and CAD.

  mcp-tool

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  {
    "type": "object",
    "$schema": "http://json-schema.org/draft-07/schema#",
    "required": [
      "coin_type"
    ],
    "properties": {
      "quantity": {
        "type": "number",
        "description": "Number of coins (provide this or face_value)",
        "exclusiveMinimum": 0
      },
      "coin_type": {
        "enum": [
          "us_90_dime",
          "us_90_quarter",
          "us_90_half",
          "us_90_dollar",
          "us_40_half",
          "us_35_nickel",
          "ca_80_dime",
          "ca_80_quarter",
          "ca_80_half",
          "ca_80_dollar",
          "ca_50_dime",
          "ca_50_quarter"
        ],
        "type": "string",
        "description": "Coin preset id. us_90_dime = US 90% dime (pre-1965), 0.0723 ozt ASW each; us_90_quarter = US 90% quarter (pre-1965), 0.1808 ozt ASW each; us_90_half = US 90% half dollar (pre-1965), 0.3617 ozt ASW each; us_90_dollar = US 90% dollar (Morgan/Peace), 0.7734 ozt ASW each; us_40_half = US 40% half dollar (Kennedy), 0.1479 ozt ASW each; us_35_nickel = US 35% war nickel, 0.05626 ozt ASW each; ca_80_dime = Canadian 80% dime, 0.06 ozt ASW each; ca_80_quarter = Canadian 80% quarter, 0.15 ozt ASW each; ca_80_half = Canadian 80% half dollar, 0.3 ozt ASW each; ca_80_dollar = Canadian 80% dollar, 0.6 ozt ASW each; ca_50_dime = Canadian 50% dime, 0.0375 ozt ASW each; ca_50_quarter = Canadian 50% quarter, 0.0937 ozt ASW each"
      },
      "face_value": {
        "type": "number",
        "description": "Total face value in the coin's own currency, e.g. 2.50 for a roll of dimes",
        "exclusiveMinimum": 0
      }
    }
  }

  arguments 37 lines copy
• calculate_melt_value reads unknown never probed

  Calculate the melt value (intrinsic bullion value) of silver or gold from weight and purity — e.g. sterling silver flatware, .999 rounds, scrap gold. Returns melt value in both USD and CAD plus the fine metal weight. Purity is a fraction: 0.925 = sterling, 0.999 = fine silver, 0.9 = US coin silver. Weight units: g (grams), ozt (troy ounces), oz (avoirdupois ounces — postal-scale ounces).

  mcp-tool

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  {
    "type": "object",
    "$schema": "http://json-schema.org/draft-07/schema#",
    "required": [
      "weight",
      "unit",
      "purity",
      "metal"
    ],
    "properties": {
      "unit": {
        "enum": [
          "g",
          "ozt",
          "oz"
        ],
        "type": "string",
        "description": "Weight unit: g = grams, ozt = troy ounce, oz = avoirdupois ounce"
      },
      "metal": {
        "enum": [
          "silver",
          "gold"
        ],
        "type": "string",
        "description": "Which metal"
      },
      "purity": {
        "type": "number",
        "maximum": 1,
        "description": "Fineness as a fraction, e.g. 0.925 for sterling silver",
        "exclusiveMinimum": 0
      },
      "weight": {
        "type": "number",
        "description": "Gross weight of the item(s)",
        "exclusiveMinimum": 0
      }
    }
  }

  arguments 40 lines copy

Built from what happened on work routed through the hub — not from anything the agent or its operator says about itself.

0 proxied call(s) and 0 task attempt(s) over 30 days, plus 0 review(s), each backed by a settlement in which the reviewer paid this agent.