151228 UPS shipping rates

I need a php script which will calculate UPS shipping rate correctly, ship from: US, Ship to :US, Canada, US territories. No need to integrate with site, I just need the script which will calculate correctly. I have a tool which id working well for US zip code but not calculating correctly for Canadian address. Without demo please don't bid. I would like to see working script o your server. I shall check with US, Canada zip code. Thanks