Shipping API plug-ins

I’m creating a Cake 4.x system that will include shipping integration with UPS, FedEx, and USPS. Before I create an entire set of classes to integrate with their APIs, I’m wondering if anyone has developed this plug in already.
The plug-in should be able to handle address verification, shipment rating, shipment creation, and label printing.

I have looked around a bit but personally can’t find anything.

Plausibly if you release it, others can integrate the APIs for their respective “national” shipping services as well.
UPS is relatively common here, FedEx slightly common but USPS isn’t.
Most shipments here (in The Netherlands) are done through DHL, PostNL and occasionally DPD or GLS.