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ECB FX Currency Converter
x402
ECB FX Currency Converter is a paid API for AI agents from fx.x402utils.workers.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-30).
Converts a monetary amount from one currency to another using official European Central Bank reference exchange rates.
Price / call$0.001
Success—
StatusUnknown
How this service works
Official ECB foreign-exchange reference rates for agents: latest rates, conversion and historical fixings for ~30 currencies. Paid per call via x402 (USDC on Base).
Output
A JSON object containing the source currency (from), target currency (to), the ECB reference exchange rate (rate), the input amount, and the converted result amount. Example: {from: 'USD', to: 'PLN', rate: 3.8553, amount: 100, result: 385.53}.
Example use cases
Invoice payment in foreign currency
“I need to pay a supplier 2500 euros — how much is that in US dollars at today's ECB rate?”
Travel budget estimation
“I'm heading to Japan and want to know how much 1000 British pounds converts to in Japanese yen using the official ECB rate.”
E-commerce price display
“What is 89.99 USD worth in Swedish kronor right now? I need the ECB reference rate for my checkout page.”
Technical details
Endpoint
GEThttps://fx.x402utils.workers.dev/v1/convert?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need authoritative, official ECB foreign exchange reference rates rather than real-time market rates. Ideal for compliance-sensitive financial calculations, invoicing, and reporting that require a trusted institutional source. Covers approximately 30 major currencies. At $0.001 per call it is cost-effective for per-transaction lookups in automated agent workflows.
Side effects
- Unsupported currency code returns an error — only ~30 ECB-tracked currencies are available
- Missing required query parameters (from, to, amount) return a validation error
- Non-numeric amount value causes a parsing error
- ECB data unavailable or stale during maintenance windows
- Payment failure via x402 if USDC balance is insufficient
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"to": "PLN",
"from": "USD",
"rate": 3.8553,
"amount": 100,
"result": 385.53
}
}Tags
x402
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