I signed up with a USPS personal account rather than a business account and you have to have a business account to do that
So I went on chat you to be and look for a free USPS tracking API's
And it came up with some third party ones. I found one
It's called
Shippo I currently have it up and I will turn the relay on if you want
If you need to get to know it
Actually, I'll turn the relay on right now and you check it out