Quote real carrier prices at checkout instead of guessing. Gatemi Carrier Shipping talks directly to five carriers with your own credentials, and asks for those credentials — and your ship-from address, and how you pack — exactly once, on one screen. Every shipping zone then uses that answer.
Carriers
* USPS — Ground Advantage, Priority Mail, Priority Mail Express, Media and Library Mail, and the international services, on the modern REST API. * UPS — Ground, Ground Saver, 3 Day Select, 2nd Day Air, Next Day Air and the Worldwide services, with negotiated rates when your account has them. * FedEx — Ground, Home Delivery, Express Saver, 2Day, Overnight and the international services, with transit times. * Australia Post — Parcel Post, Express Post, Courier Post and the international services, on the PAC API. * Canada Post — Regular Parcel, Expedited, Xpresspost and Priority, plus the USA and international services.
What it does
* Live rates from every carrier you connect, in one plugin. * Three packing strategies: one parcel per item, one combined parcel, or fitted into the boxes you actually ship in. * A markup per service — a flat amount, a percentage, or both. Negative numbers discount. * Rename any service to whatever your shoppers should see. * Offer every rate a carrier returned, or only the cheapest. * A fallback price so a carrier outage never blocks a checkout. * Quotes are cached, so a shopper editing their cart does not re-quote. * A connection test per carrier, so credentials are verified on the settings screen rather than at someone's checkout.
What it deliberately does not do
No legacy carrier APIs — no USPS Web Tools XML, no UPS access keys, no FedEx WSDL. Those stacks are retired or retiring, and carrying them is most of the maintenance burden in this category. Labels, tracking and address validation are out of scope for this release.
Every license includes
- One year of updates and priority support, delivered straight to your WordPress dashboard.
- Use on 1, 5 or 25 sites depending on your license — local, staging and development sites are always free.
- 30-day money-back guarantee — full refund, no questions asked.
- Keeps working after expiry — if you choose not to renew, the plugin keeps running exactly as installed; it simply stops receiving updates and support until you do.
Requires WordPress 6.4+ · PHP 7.4+ · tested up to WordPress 7.0. Works with the classic and block checkout alike.

Laura S. (verified owner) –
No dashboard advert. That alone bought my goodwill. Even the Carrier Shipping settings descriptions are written properly. Thoroughly recommended.
Elena A. (verified owner) –
Funciona. Elegante no siempre es. Carrier Shipping hace lo básico sin quejarse. Merece un vistazo.
Simone V. (verified owner) –
Fa una cosa sola, e la fa bene.
Kevin P. (verified owner) –
No wrestling with it. It went in and it worked. Two shops on Carrier Shipping, both fine. I’ve bought several things in Shipping & Delivery and this is the keeper. Genuinely useful bit of kit.
Daniel (verified owner) –
Exactly the plugin I had been looking for. I have rolled Carrier Shipping out on three client sites now. Easy five stars.