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8 clients · secrets stay placeholders

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{
  "mcpServers": {
    "silver-melt": {
      "type": "http",
      "url": "https://80percentsilver.com/mcp"
    }
  }
}

claude mcp add --transport http silver-melt https://80percentsilver.com/mcp

[mcp_servers.silver-melt]
url = "https://80percentsilver.com/mcp"

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "silver-melt": {
      "type": "remote",
      "url": "https://80percentsilver.com/mcp",
      "enabled": true
    }
  }
}

{
  "mcpServers": {
    "silver-melt": {
      "type": "http",
      "url": "https://80percentsilver.com/mcp"
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=silver-melt&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vODBwZXJjZW50c2lsdmVyLmNvbS9tY3AifQ%3D%3D"
}

{
  "servers": {
    "silver-melt": {
      "type": "http",
      "url": "https://80percentsilver.com/mcp"
    }
  }
}

{
  "mcpServers": {
    "silver-melt": {
      "httpUrl": "https://80percentsilver.com/mcp"
    }
  }
}

extensions:
  "silver-melt":
    enabled: true
    name: "silver-melt"
    type: streamable_http
    uri: "https://80percentsilver.com/mcp"
    timeout: 300

Quality 79 / 100good

protocol75 · weight 25

warn
protocol.modernnewest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
n/a
protocol.statelessonly applies to 2026-07-28 servers
pass
protocol.transportstreamable HTTP
n/a
protocol.list_ttlonly applies to 2026-07-28 servers

authorizationn/a · weight 15

n/a
auth.prm, auth.as_metadata, auth.cimdno remote uses OAuth
n/a
auth.secret_in_urlno templated URL

tool hygiene71 · weight 30

pass
tools.descriptionsevery tool has a description
pass
tools.description_lengthdescriptions are concise
pass
tools.schemasevery tool has an object input schema
fail
tools.annotationsno tool declares readOnlyHint or destructiveHint, so clients cannot tell safe calls from risky ones
fail
tools.directory_hintsno tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: calculate_melt_value (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); get_spot_price (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); calculate_coin_melt (readOnlyHint, destructiveHint, idempotentHint, openWorldHint)
pass
tools.token_costabout 799 tokens to load every tool
pass
tools.api_dumptools are not a one-to-one API dump

stability100 · weight 15

pass
stability.changesno tool changes in 30 days
pass
stability.rug_pullno tool changed its meaning under the same name

dependenciesn/a · weight 15

n/a
deps.known_vulns, deps.mcp_sdk_version, deps.resolvableno npm or PyPI package

3 tools, about 799 tokens to load them all · tool set 2a51ab1bc4b9 · checked 2026-10-20 17:34 UTC

Tool changes

No tool definition changes recorded. A server's first observation is its baseline; later probes record what changes.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 79 / 100

no-repository

provenance55

liveness99

freshness85

hygiene80

+dns-namespace +website +reachable +uptime-97% ~updated-36d-ago -no-repository

Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.

Endpoints

remote	auth	reachable	uptime 30d	p50	protocol	last ok
`https://80percentsilver.com/mcp` streamable-http	none	yes	97%	412 ms	2025-11-25	2026-10-20

Tools (3)

`calculate_coin_melt`	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.
`calculate_melt_value`	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).
`get_spot_price`	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).

Schemas: list_tools.

Similar MCP servers

Official server.json

{
  "name": "com.80percentsilver/silver-melt",
  "title": "80% Silver Melt Calculator",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://80percentsilver.com/mcp",
      "type": "streamable-http"
    }
  ],
  "version": "1.0.0",
  "websiteUrl": "https://80percentsilver.com",
  "description": "Live junk silver and gold melt value calculator: spot price, coins, sterling. USD/CAD."
}