Consistent, reliable exchange rate data and currency conversion for your business.
Flexible, fast, affordable – find out why more than 100,000 developers trust our API.
Open Exchange Rates is a currency data API that powers countless companies with rates for 170 currencies with full historical data. Over 50,000 developers use their API to serve their customers.
|Simple to use||
Our data are served in transparent JSON format, with simple documentation and quick tech support.
|Open source integrations||
Our community has created over 200 open source libraries and plugins for most languages and frameworks.
From a single request per month to hundreds per second, we've got you covered.
Live and historical exchange rates for over 200 world currencies, plus time-series and conversion APIs.