Fixer.io
Fixer provides a free, simple, and lightweight API for current and historical foreign exchange rates and currency conversion. The API tracks rates published daily by the European Central Bank.
4 Alternatives To Fixer.io
BankExchange
Exchange rates JSON API, for historical exchange rates from 53 central banks from around the world…
BestExchangeRates
Compare FX and save when you send or spend abroad
eMoneyexchangesoft
eMoneyexchangesoft™ is an all in one cost effective package for all type of money exchange office or money exchange shop to run its secure monitorable foreign exchange business