Open Exchange Rates
Free, hourly-updated exchange rates and currency data - a simple, accurate, easy-to-integrate JSON API with great documentation. Free for personal use, a bargain for everybody else.
ExchangeRate-API
A reliable, easy to use and fast Exchange Rate API. Currency conversion can be implemented in any language in a few lines of c ...
Fixer.io
Fixer.io is a free, open-source foreign exchange rates and currency conversion JSON API. It returns current as well as histori ...
Currency Converter. Exchange rates and calculator offline
Currency converter contains more than 150 currencies and has a handy calculator that will help you to easily calculate the pri ...
exchangeratesapi.io
Foreign exchange rates API with currency conversion. Exchange rates API is a free service for current and historical foreign e ...
BankExchange
API for historical exchange rates from 53 central banks from around the world with a single integration point