Develop carrier calculated carrier shipping app

[JingyE]

Hi, 

I have developed a Shopify app that allows users to generate labels for different couriers on our platform. 

We want to allow users to automatically show our shipping options on their checkout screen with our prices. In theory, this is possible using the carrier-calculated carrier shipping feature in the API. However, from the documentation, it looks like only couriers themselves who have a relationship with Shopify are able to support this. Is this the case?

[HunkyBill · Accepted solution]

The Custom Carrier Service is meant for anyone to provide shipping rates to a store, specific to that store. So the rates themselves can come from FedEx, USPS, or even grandma in the garage with her crystal ball. Shopify does not care where the rates come from, as long as they conform to the standard rate payload scheme. So, it is not exclusive to any buddy buddy club with Shopify.

[JingyE]

Thanks a lot. So our app could provide live rates at checkout through carrier calculated carrier shipping?

[HunkyBill]

Yes. That is the whole point of it. Not everyone wants to use FedEx, or USPS, so Shopify makes this option of inserting custom shipping rates into checkout via this App. Note that your App cannot take > 10 seconds to generate a rate though. You cannot dilly dally trying to figure out whether to charge $10 or $100 for shipping.

[DirectXpress]

We are a carrier that has been delivering ECommerce to the consumer since 2017. I am looking for an App developer or an existing App that can provide Shopify merchants our rates for Canada and the USA at this point. How can I get in touch with this type of developer or existing App?