Post pobrano z: Well Formatted And Open Source Exchange Rates For Your Web Apps
For websites that are selling stuff or dealing with currencies, -like displaying prices of products, presenting parities (business-economy sites) , multilanguage web apps- having the up-to-date exchange rates is pretty important.
Open Source Exchange Rates API is a free-to-use service that makes these rates reachable -updated every hour- in a clean JSON format.
The service collects all the exchange rates from the Google Calculator API (one by one) and pushes them in JSON format to a public GitHub code repository where everyone can reach.
Also, the data can be reached historically again in a simple API call.