Various online services provide APIs for checking bitcoin market prices and exchange rates. A service that you can use for free is available at https://blockchain.info/ticker. A GET HTTP request returns a JSON object with the market price for various currencies. Documentation for the API can be found at: https://blockchain.info/api/exchange_rates_api. An excerpt from such a JSON object is shown here:
{ "USD": { "15m": 8196.491155299998, "last": 8196.491155299998, "buy": 8196.491155299998, "sell": 8196.491155299998, "symbol": "$" }, "GBP": { "15m": 5876.884158350099, "last": 5876.884158350099, "buy": 5876.884158350099, "sell": 5876.884158350099, "symbol": "£" }}
There are various libraries that you can use for transferring ...
