Currency Code Lookup (ISO 4217)
Currency lookup by ISO 4217 alphabetic or numeric code: the official English name, minor-unit exponent, fund flag, the smallest cash denomination where it differs from the minor unit, the territories that use it, and historic codes on request. Returns the correct rounding increment for cash amounts, which is what a caller needs to render or settle a price. This route returns currency facts only and never an exchange rate.
Offering
- Provider
- api.duoleads.com
- Method
- GET
- Offering type
- Api Endpoint
- Transport type
- http
- Category
- Financial Analysis
- Delivery
- Not provided
- Pricing model
- Not provided
- x402 version
- 2
Endpoint context
- URL
https://api.duoleads.com/v1/ref/currency- MIME type
- application/json
- First seen
- 2026-10-16T01:50:38.788Z
- Last seen
- Tags
- Currency, currency-code, iso-4217, Finance, ref
Payment pricing
x402 payment terms are the authoritative price for calling this endpoint.
- Payment option 1
- 0.05 USDC
Atomic price: 50000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Raw x402 terms
[
{
"scheme": "exact",
"network": "eip155:8453",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "50000",
"payTo": "0xCD673f7e1daD254347AEab6be0DEFe8b9C6b3A39"
}
]Observed health
- Status
- Healthy
- Latest latency
- 28 ms
- Average latency
- 822 ms
- HTTP status
- 402
- Last checked
- Reachability
- 100% over 14 checks
Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.
Input schema
{
"type": "object",
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"type": "string",
"enum": [
"GET"
]
},
"queryParams": {
"type": "object",
"properties": {
"code": {
"type": "string",
"description": "ISO 4217 alpha-3 or 3-digit numeric code.",
"maxLength": 16
},
"country": {
"type": "string",
"description": "ISO 3166-1 alpha-2; returns the currencies in use there.",
"maxLength": 16
},
"include": {
"type": "string",
"description": "Comma-separated: territories, historic. Default none.",
"maxLength": 64
}
},
"required": []
}
},
"required": [
"type",
"method"
],
"additionalProperties": false
}Output schema
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"code": {
"description": "ISO 4217 alpha-3 or 3-digit numeric code.",
"maxLength": 16,
"type": "string"
},
"country": {
"description": "ISO 3166-1 alpha-2; returns the currencies in use there.",
"maxLength": 16,
"type": "string"
},
"include": {
"description": "Comma-separated: territories, historic. Default none.",
"maxLength": 64,
"type": "string"
}
},
"required": [],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"data": {
"properties": {
"cash_minor_units": {
"type": [
"integer",
"null"
]
},
"cash_rounding": {
"type": [
"number",
"null"
]
},
"code": {
"type": "string"
},
"country": {
"type": "string"
},
"currencies": {
"items": {
"properties": {
"cash_minor_units": {
"type": [
"integer",
"null"
]
},
"cash_rounding": {
"type": [
"number",
"null"
]
},
"code": {
"type": "string"
},
"is_fund": {
"type": "boolean"
},
"minor_units": {
"type": [
"integer",
"null"
]
},
"name": {
"type": "string"
},
"numeric": {
"type": [
"string",
"null"
]
},
"status": {
"type": "string"
},
"territories": {
"items": {
"type": "string"
},
"type": "array"
}
},
"required": [
"code",
"numeric",
"name",
"minor_units",
"cash_minor_units",
"cash_rounding",
"is_fund",
"status"
],
"type": "object"
},
"type": "array"
},
"found": {
"type": "boolean"
},
"is_fund": {
"type": "boolean"
},
"minor_units": {
"type": [
"integer",
"null"
]
},
"name": {
"type": "string"
},
"numeric": {
"type": [
"string",
"null"
]
},
"numeric_shared_with": {
"items": {
"type": "string"
},
"type": "array"
},
"status": {
"type": "string"
},
"territories": {
"items": {
"type": "string"
},
"type": "array"
},
"withdrawn": {
"type": "string"
}
},
"required": [
"found"
],
"type": "object"
},
"meta": {
"properties": {
"computed_at": {
"description": "RFC 3339 UTC with milliseconds",
"type": "string"
},
"deterministic": {
"type": "boolean"
},
"disclaimer": {
"type": "string"
},
"price_usd": {
"type": "string"
},
"request_id": {
"type": "string"
},
"sources": {
"items": {
"required": [
"id",
"version",
"published"
],
"type": "object"
},
"type": "array"
}
},
"required": [
"request_id",
"computed_at",
"price_usd",
"deterministic",
"disclaimer"
],
"type": "object"
},
"ok": {
"const": true
},
"route": {
"const": "/v1/ref/currency"
},
"version": {
"type": "string"
}
},
"required": [
"ok",
"route",
"version",
"data",
"meta"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}