Fixer API
The Fixer API is capable of delivering real-time forex data via API at an accuracy of 6 decimal points and a frequency as high as every 60 seconds. Fixer is built on top of a powerful back-end infrastructure allowing for high availability and response times below 50ms for specific API requests. Capabilities include delivering exchange rates for 170 world currencies, converting single currencies, returning Time-Series data and fluctuation data.