Euro-Dollar Conversion (for php or any language)

I'm just curious for the project I'm dreaming.

Is there an api in web, which we can trust for coming years that output the euro to dollar conversion, for example, in a very simple format,

Request in a format like:
site.com/query?money1=eu&money2=usd
and output like:
EU USD 1.2

Nothing more.

In our country Central Bank provides such a simple layer for years, with no change in format. I'm curious if FED or European Central Bank also does it.

 

OK, I found one: http://api.finance.xaviermedia.com/api/2009/02/27.xml

But if you know such an api, from central banks, please send.
Thanks.

 

You can use the API class found in this script:

http://awesomephp.com/?ExchangeRateCalculator

Peace,