LLLLLLL Posted October 1, 2010 Share Posted October 1, 2010 What's the best United States Postal Service API that anyone is using? I've tried three (from the top google results for this question) but none seem to work. No errors, just not getting results back from USPS. I'd like to know what anyone else is using, and if you have some sample code! Thanks (PHP 5) Quote Link to comment https://forums.phpfreaks.com/topic/214891-usps-rate-calculator-api/ Share on other sites More sharing options...
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