Historical ECB FX rates: single past date or daily time series since 1999

European Central Bank reference exchange rates for any past date or date range (business days since 1999-01-04), via frankfurter.dev. Query: ?date=2026-05-01 for one day, or ?start=2026-05-01&end=2026-05-08 for a daily series (max 366 days), plus ?base=EUR&symbols=USD,GBP (symbols optional -> all). Series responses nest rates by date. Historical data is immutable; served with a 24h cache.

get/v1/fx/history

Request

  • Base URL: https://data.greeneris.io (the document declares no server; this is the origin it was published from)
  • URL: https://data.greeneris.io/v1/fx/history
  • Auth: none declared

Query parameters

datestring

Single day YYYY-MM-DD (mutually exclusive with start/end)

startstring

Series start YYYY-MM-DD

endstring

Series end YYYY-MM-DD (default today, max 366 days after start)

basestring

Base currency code

symbolsstring

Comma-separated target currencies, max 12 (optional -> all)

Response

Successful response

unknown required

Changes

No recorded changes to this operation across all 1 revision of this API.