you must log into the fedex developer center: http://www.fedex.com/us/developer/web-services/index.html
four steps are required-> 1- Download and read docs , 2-Develop and Test, 3-Certification (only for shipping, pickup services). 4- Move to production.
In order to receive an approval for rate services, tracking and fedex locator just go to step 4 Move to production and fill all the information that appears when you press "Get Production Key" Button.

FedEx will send you an email with your key, meter number and password.
with that information you can put it at your app. brgds
Answer from s_h on Stack Overflowdrupal 7 - How to get fedex api key? - Stack Overflow
Getting full tracking details from Fedex API
FedEx API Access Token Generation
FedEx Tracking API Example
Videos
you must log into the fedex developer center: http://www.fedex.com/us/developer/web-services/index.html
four steps are required-> 1- Download and read docs , 2-Develop and Test, 3-Certification (only for shipping, pickup services). 4- Move to production.
In order to receive an approval for rate services, tracking and fedex locator just go to step 4 Move to production and fill all the information that appears when you press "Get Production Key" Button.

FedEx will send you an email with your key, meter number and password.
with that information you can put it at your app. brgds
When you contact FedEx for the credentials, they send you two mails. One that contains the account number, meter number and web services key, and the other contains the web services password.
https://www.xadapter.com/can-find-web-services-password/
Hi, I'm building a VBA app to store information about packages we receive at my job. I signed up for the fedex api and I'm able to get most of the details, but it's not giving me the full address and contact information. I know if you track a package on fedex's website, it doesn't show you that info unless it's a package you shipped, and I'm assuming that's what's going on here. The thing is that the api still isn't showing me full details even when I use it to track a package shipped from the fedex account my api key is registered to, and the api documentation doesn't show a way to specify an account number in the POST request when you're searching by tracking number. There doesn't seem to be any answers for this in the api documentation or on fedex's developer support website.