There isn't an API. However, there are ways to do it, all potentially problematic. If you were willing to use Python, I recently discovered a script to do it.
Google used to have a SOAP API, but no longer. Some people scrape the results. You can try to get it from the AJAX API, but there's not a public API for this.
I don't understand you question here. Could you clarify and I'll update my answer?
marcc
2009-08-28 03:49:31