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Official Macro & FX Data — ECB Exchange Rates
x402
Official Macro & FX Data — ECB Exchange Rates is a paid API for AI agents from x402-apis.pages.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-22).
Returns ECB official euro reference exchange rates for ~30 currencies, supporting any base currency and any date since 1999, with cross-rate computation.
Price / call$0.002
Success—
StatusUnknown
How this service works
Use when an agent needs an official exchange rate to convert prices, invoices or portfolios: ECB euro reference rates for ~30 currencies (USD, GBP, CHF, JPY, CNY …), latest or for any day since 1999, with any base currency (cross rates computed from the ECB fix). Returns the exact rate date. Source named in every answer. Bad input: HTTP 400 before payment; unknown currency or outage is not charged.
Output
A JSON object containing the base currency, the exact ECB fix date (adjusted for weekends/holidays to the previous business day), a rates map of target currency codes to their exchange rates, and a named source attribution string.
Example use cases
Invoice currency conversion for billing
“I need to convert a client invoice of 50,000 EUR into USD and GBP using today's official ECB reference rates — can you get those rates and tell me the exact amounts?”
Historical portfolio valuation on past date
“What were the official ECB exchange rates for USD, CHF, and JPY on March 31, 2023? I need the exact rate date for my quarterly portfolio valuation report.”
Cross-rate lookup for non-EUR currency pair
“What's the official exchange rate between GBP and JPY right now using ECB data? Use GBP as the base currency.”
Technical details
Endpoint
GEThttps://x402-apis.pages.dev/v1/fx-rates?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need authoritative, official central bank exchange rates (not market mid-rates or broker rates) sourced directly from the ECB, especially for compliance, accounting, invoicing, or regulatory purposes. It covers ~30 major currencies with full historical depth back to 1999 and supports cross-rate computation from any ECB reference currency as base — making it superior to generic FX APIs when official sourcing and exact rate-date traceability matter.
Side effects
- HTTP 400 for invalid or malformed currency codes or date format — returned before any charge
- Unknown currency code returns an error without billing
- ECB outage or unavailable data returns an error without billing
- Dates before 1999-01-04 are out of range
- Weekend or holiday dates return rates from the previous ECB fixing day, not the exact date requested
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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