Tool detail

premiums

Returns physical commodity premiums by venue over COMEX, split into the tax wedge and the ex-tax market premium.

Categories: Market prices

Use when

compare gold or silver premiums across Shanghai, Tokyo, India and London
see how much of a metal's premium is import duty or VAT versus real demand

Not for

not COMEX futures prices themselves, only the venue premium over them

Inputs

GET query param: metal (enum: gold, silver, copper, platinum; optional). Description text also mentions palladium, which is not in the schema enum.

Admitted input schema

{
  "type": "object",
  "properties": {
    "metal": {
      "type": "string",
      "minLength": 0,
      "maxLength": 4096,
      "enum": [
        "gold",
        "silver",
        "copper",
        "platinum"
      ],
      "examples": [
        "gold"
      ]
    }
  },
  "required": [],
  "additionalProperties": false
}

Endpoint

Method: GET
URL: https://thevaultreport.com/api/x402/premiums

Payment

Protocol: x402
Listed price: 0.02 USDC per call on Base
Payment method: exact
Network: eip155:8453
Asset: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Listed terms are catalog metadata. The caller supplies inputs and calls the tool outside Onelayer. If payment is required, the caller uses a compatible wallet to pay.

Source

Directory: Coinbase x402 Bazaar
Record: GET https://thevaultreport.com/api/x402/premiums
Retrieved: 2026-09-30T20:37:07.382Z
Catalog file SHA-256: 6837ccddf886f0007cf3727ea9d27faaa5047b51b4f425345c554ce1c271a524
Catalog built: 2026-09-30T22:31:58.034Z