Melt value of gold, silver or platinum jewelry from weight, karat or fineness an
Melt value of gold, silver or platinum jewelry from weight, karat or fineness and the spot price per troy ounce you supply.
Answeringour last check, 2026-10-21
1 of 1checks answered this week
334 msmedian answer time
$0.02listed price per call
$0.02price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
GET https://jewelry-calc.x402tookit.com/melt-value
| Category | Market data |
|---|---|
| Provider host | jewelry-calc.x402tookit.com |
| Networks | eip155:137, eip155:42161, eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-21 | valid payment request | 402 | $0.02 | 334 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"grams": 12.4,
"karat": 14,
"spotPerTroyOunce": 2000
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"fineness": {
"description": "Fineness per thousand, for example 925 for sterling or 750 for 18k",
"type": "number"
},
"grams": {
"description": "Total weight of the piece (grams unless weightUnit says otherwise)",
"type": "number"
},
"karat": {
"description": "Gold karat 1 to 24 (use karat or fineness)",
"type": "number"
},
"payoutPercent": {
"description": "Share of melt value a buyer pays, 1 to 100 (default 100)",
"type": "number"
},
"spotPerTroyOunce": {
"description": "The metal's price per troy ounce, in your currency (you supply it; none is built in)",
"type": "number"
},
"weightUnit": {
"description": "g (default), dwt, ozt (troy ounces) or oz (avoirdupois ounces)",
"type": "string"
}
},
"required": [
"grams",
"spotPerTroyOunce"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"asOf": {
"type": [
"null",
"string"
]
},
"degraded": {
"type": [
"boolean",
"null"
]
},
"disclaimer": {
"type": [
"null",
"string"
]
},
"meltValue": {
"type": [
"null",
"number"
]
},
"meltValueAtPayout": {
"type": [
"null",
"number"
]
},
"meltValuePerGramOfPiece": {
"type": [
"null",
"number"
]
},
"notChecked": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"payoutPercent": {
"type": [
"null",
"number"
]
},
"pieceGrams": {
"type": [
"null",
"number"
]
},
"pureMetalDwt": {
"type": [
"null",
"number"
]
},
"pureMetalGrams": {
"type": [
"null",
"number"
]
},
"pureMetalTroyOunces": {
"type": [
"null",
"number"
]
},
"purityPercent": {
"type": [
"null",
"number"
]
},
"reasons": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"source": {
"type": [
"null",
"string"
]
},
"spotPerTroyOunce": {
"type": [
"null",
"number"
]
},
"summary": {
"type": [
"null",
"string"
]
},
"verdict": {
"type": [
"null",
"string"
]
}
},
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}