Is there a free webservice/api (on Yahoo or other platforms) that can return live stock prices for precious metals rates (Gold, Silver, Platinium, Palladium)?
Here is a paid service : http://www.kitco.com/market/
(It would be great if it comes from Yahoo Query Language)
if you need a free and hourly updated one - this Precious Metals XML Feed is perfect for you.
I was looking for the same thing, and so far have only been able to find this xml webservice. Unfortunately it's only updated at the end of the day, so it's not really live.
in my point of view, you should use the REST service from goldalert.com. By using firebug you will be able to explore the service through the site's free chart at http://www.goldalert.com/gold-chart/ticker.html.
来源：https://stackoverflow.com/questions/4791189/precious-metals-api-webservice-wanted