According to the UPS Developer Kit's guidelines for the UPS Rating API[1] (the API used for getting shipping rates): Unapproved business models/usages • Display of UPS rates side by side with competitor rates How does Shyp get around this restriction? [1]: (page 25) https://www.ups.com/media/en/UPS_dev_kit_user_guide.pdf
it ticks me off when pedants run to the terms of service/etc. to undermine something exceptional. if you're big enough, or influential enough you can negotiate your own terms of use for any API or any service. if you're small, then they probably won't even notice your usage. shyp is not a weekend hackathon project. While it's certainly possible they're blatantly violating terms and hoping they don't get caught, that…
I'm responsible for 100s of shipments per day, and I'm genuinely curious how they got around this restriction, as our order and shipping management system vendor doesn't allow us to rate shop UPS against other carriers (although both the Shippo and EasyPost APIs do allow this, whether directly or simply by providing the information required).