Each major carrier provides an API or Application Program Interface which allows to integrate any application or web site with their systems.
I am looking for somebody, who can integrate UPS, USPS, FedEx, DHL, and maybe other carrier provides systems to 1 central php shipping calculator, which I can use in ecommerce aplication.
7 freelancers estão ofertando em média $234 para esse trabalho
Hi, I have experience in Integrating UPS and USPC. For other gateway i need to study their respecive API documentation. I can assure you 100% satisfaction and professional quality. Thanks Shailen