The XE Currency Data API is a back-end solution for tracking real-time exchange rates in the international currency markets. The API serves as a hub for streaming exchange rates of over 160 currencies delivered by more than 100 sources from around the world. The HTTPS GET serves as the gateways for accessing the API that is responsive to JSON, XML, CSV protocols. The use of the XE Currency Data API attracts a minimum fee of $799 annually. Prices for different pricing plans depend on the request volume categorized as minimum (10,000 requests per month), medium (100,000 requests per month), and enterprise (unlimited request per month).