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Calculating the shipping cost for different USPS services with usps shipping api is pretty simple.For calculating the actual shipping cost of your item simply pass your product weight and zip codes to the shipping api .For using this usps shipping ap[...]

Calculating the shipping cost for different UPS services with ups shipping api is pretty simple the following code can be used. First you have to signup on the UPS for getting your API key,UPS username , password and a UPS account number. Ups Shi[...]