The service provides historical exchange rates for selected currency pairs using data from the U.S. Federal Reserve System and the European Central Bank (ECB). It can provide either current exchange rates or values in effect on specified dates starting in 1971. Exchange rates are available for more than 170 world currencies.
API methods support retrieval of the latest exchange rate for a specified pair of currencies. Methods also provide a historical rate for a pair of currencies on a specified date or a range of exchange rates in effect between specified start and end dates.
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