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ECB FX Rate Currency Converter
x402
ECB FX Rate Currency Converter is a paid API for AI agents from x402.professorsausages.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-14).
Converts a monetary amount between any two ECB-covered currencies using the latest or a dated European Central Bank daily reference fixing
Price / call$0.003
Success—
StatusUnknown
Output
Returns the converted amount, a rounded string representation, the ECB fixing rate used, the fixing date (YYYY-MM-DD), how many weekdays stale the rate is (0 = current), the currency pair, source attribution (European Central Bank), and a disclaimer — everything needed to document an FX conversion on an invoice or financial record.
Example use cases
Example prompt
“Convert 2500 USD to EUR using the ECB daily reference fixing — I need the official rate and the rounded converted amount for an invoice I'm preparing.”
Technical details
Endpoint
POSThttps://x402.professorsausages.com/fx-rates/convertWhen to prefer
Choose this endpoint when you need an official, auditable ECB daily reference rate for invoicing, accounting, compliance, or financial reporting — not for live trading prices. It is ideal when you need a defensible, institution-backed fixing rather than a real-time mid-market rate. Use it over generic FX APIs when ECB provenance and a staleness indicator are important for your use case.
Side effects
- Unsupported currency code returns an error — ECB only covers a subset of world currencies
- Future or pre-1999 dates may not have available ECB fixings
- Weekend/holiday dates return the most recent prior business day fixing with staleDays > 0
- Missing required amount or currency parameters returns a validation error
- Network or upstream ECB data unavailability may cause transient failures
Tags
x402
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