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Suverse FX Historical Date – ECB Exchange Rates by Date
x402
Suverse FX Historical Date – ECB Exchange Rates by Date is a paid API for AI agents from proxy.suverse.io, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-14).
Returns ECB reference exchange rates for a specified historical date and base currency via the Frankfurter API, requiring no API key.
Price / call$0.002
Success—
StatusUnknown
How this service works
ECB reference exchange rates on a specific historical date for a base currency via Frankfurter, no key. For AI agents reconciling past transactions and historical valuation.
Output
Returns a JSON object containing the requested historical date, the base currency, and a map of target currency codes to their ECB reference exchange rates as published on that date. If the date falls on a weekend or holiday when ECB does not publish rates, the nearest prior business day's rates are typically returned.
Example use cases
Past invoice reconciliation in foreign currency
“I have an invoice from October 5, 2022 that was paid in GBP but I need to record it in EUR — what was the official ECB exchange rate from GBP to EUR on that date?”
Historical portfolio valuation
“Can you look up the ECB reference rates for USD, JPY, and CHF against EUR on December 31, 2022? I need those closing rates for my year-end portfolio valuation.”
Audit trail for cross-border payments
“Our auditors need the official ECB exchange rate between EUR and SEK for every transaction date — start with June 1, 2021. What was the rate on that day?”
Technical details
Endpoint
POSThttps://proxy.suverse.io/v1/data/suverse-fx-historical-dateWhen to prefer
Choose this endpoint when you need official ECB reference exchange rates for a specific past date and have no API key for Frankfurter or similar services. It is ideal for financial reconciliation, accounting, audit compliance, and historical valuation tasks where ECB-published rates are the authoritative source. Prefer this over live-rate endpoints when the query is explicitly historical rather than current.
Side effects
- Date outside ECB historical data range (pre-1999) returns an error
- Weekend or holiday dates may return nearest available prior rates rather than the exact date
- Invalid currency code returns an error or empty rates object
- Malformed date format causes a validation error
- ECB data unavailable for very recent dates (rates published with a short delay)
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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