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SignalDesk AI – Currency List Lookup
x402
SignalDesk AI – Currency List Lookup is a paid API for AI agents from x402-agent.kariguetoazul.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-13).
Returns a cached list of all supported currency codes and their full names, sourced from the European Central Bank via Frankfurter.
Price / call$0.002
Success—
StatusUnknown
How this service works
Evidence-backed autonomous AI jobs and paid data tools. Queue/D1/cron run outside the chat; free quotas and bounded execution apply.
Output
A JSON object containing a 'currencies' map of ISO 4217 currency codes to their full English names (30 currencies including USD, EUR, GBP, JPY, etc.), plus a 'source' object with provider name, source URL, fetch timestamp, and expiry timestamp indicating when the cached data was retrieved and when it expires.
Example use cases
Currency code reference for FX app
“I'm building a currency converter — can you fetch all the supported currency codes and their full names so I can populate my dropdown menu?”
Validate user-entered currency code
“A user typed 'HUF' as their target currency — can you check whether that's in the list of supported currencies and tell me the full name?”
Explain unfamiliar currency abbreviation
“What does the currency code 'ISK' stand for? Fetch the full currency list and tell me the name for that code.”
Technical details
Endpoint
GEThttps://x402-agent.kariguetoazul.workers.dev/api/data/currencies?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a simple, authoritative reference list of supported currency codes and their full names, especially as a prerequisite before making exchange rate queries. It is ideal for populating UI dropdowns, validating user-supplied currency codes, or resolving abbreviations to full names. Prefer this over scraping Wikipedia or maintaining your own list, since it reflects exactly which currencies are available in the paired exchange rate API.
Side effects
- Upstream Frankfurter/ECB API unavailable — stale or no data returned
- Payment of 0.002 USDC not provided or invalid — 402 Payment Required response
- Cache expired and refresh failed — potentially outdated currency list
- Network timeout reaching the Cloudflare Worker endpoint
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| required | string | |
| properties | string |
Output
Schema · Response
{
"type": "json",
"example": {
"source": {
"provider": "Frankfurter / European Central Bank reference data",
"expires_at": "2026-10-03T09:44:50.068Z",
"fetched_at": "2026-10-02T09:44:50.068Z",
"source_url": "https://api.frankfurter.dev/v1/currencies",
"transformed": true
},
"currencies": {
"AUD": "Australian Dollar",
"BRL": "Brazilian Real",
"CAD": "Canadian Dollar",
"CHF": "Swiss Franc",
"CNY": "Chinese Renminbi Yuan",
"CZK": "Czech Koruna",
"DKK": "Danish Krone",
"EUR": "Euro",
"GBP": "British Pound",
"HKD": "Hong Kong Dollar",
"HUF": "Hungarian Forint",
"IDR": "Indonesian Rupiah",
"ILS": "Israeli New Shekel",
"INR": "Indian Rupee",
"ISK": "Icelandic Króna",
"JPY": "Japanese Yen",
"KRW": "South Korean Won",
"MXN": "Mexican Peso",
"MYR": "Malaysian Ringgit",
"NOK": "Norwegian Krone",
"NZD": "New Zealand Dollar",
"PHP": "Philippine Peso",
"PLN": "Polish Złoty",
"RON": "Romanian Leu",
"SEK": "Swedish Krona",
"SGD": "Singapore Dollar",
"THB": "Thai Baht",
"TRY": "Turkish Lira",
"USD": "United States Dollar",
"ZAR": "South African Rand"
}
}
}Tags
x402
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