In this example we will use cryptonator's api to show a conversion from bitcoin to USD.
For more information about the api visit – https://www.cryptonator.com/api/. From the website
Cryptonator provides unique volume of cryptocurrency exchange rates data, which is delivered in easy-to-integrate JSON format via simple HTTPS requests. Prices are updated every 30 seconds, covering 300+ cryptocurrencies across 62 exchanges.
You can get a list of cryptocurrencies supported by visiting http://www.cryptonator.com/api/currencies
Lets take a look at an example in PHP
Code
[php]
<?php
$url = “https://www.cryptonator.com/api/ticker/btc-usd”;
$data = json_decode(file_get_contents($url), true);
$ticker = $data[‘ticker'];
$latest_price = $ticker[‘price'];
echo “1 Bitcoin = ” . “$latest_price” . ” US Dollars”;
?>
<html>
<head>
<title>BTC to USd Price Converter</title>
<meta content='10' http-equiv='refresh'/> <!– Reloads Page every 10 seconds –>
</head>
<body>
</body>
</html>
[/php]
Output
You should see something like this, depending on the current bitcoin price
1 Bitcoin = 9127.96826769 US Dollars