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post/currency/v1/historical1 credit

reference rates on a past date (YYYY-MM-DD; weekend/holiday → last working day) since 1999-01-04

Working example
Parameters

Reference date (YYYY-MM-DD), since 1999-01-04. A weekend/holiday resolves to the last working day (echoed as requested_date).

Base currency the rates are expressed in (ISO-4217). Defaults to EUR. Retired codes (RUB/HRK/legacy euro-joiners) work only for historical dates that predate their discontinuation.

Optional comma-separated target currencies to return (e.g. 'USD,GBP,JPY'). Omit to return every currency in the ECB set. Unknown codes are reported under 'unavailable', not rejected.

request preview
curl -X POST https://api.reefapi.com/currency/v1/historical \
  -H "x-api-key: $REEF_KEY" \
  -H "content-type: application/json" \
  -d '{"date":"2020-07-01","base":"USD","symbols":"EUR,GBP"}'

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