When testing the rpc interface http://aur.archlinux.org/rpc.php? states:

----------------------------

The methods currently allowed are:

* search
* info


Each method requires the following HTTP GET syntax:
type=methodname&arg=data

Where methodname is the name of an allowed method, and data is the argument to the call.

If you need jsonp type callback specification, you can provide an additional variable callback.
Example URL:
http://aur-url/rpc.php?type=search&arg=foobar&callback=jsonp1192244621103

-----------------

type=search seems to work OK, when I try anything with typ=info however it returns an error:
{"type":"error","results":"No result found"}

Example URL:
http://aur.archlinux.org/rpc.php?type=info&arg=tupac

Do I do something wrong or isn't this fully implemented yet?
I'd like to try this feature!