Verify app store connect API

Hi There! I have several white-label apps for which I use the App Store Connect API to upload .ipa files to TestFlight. The App Store Connect API is provided by my clients via a form. I'd like to verify the API is correct or not that is provided by my clients. Is there a way to validate the API key before proceeding with building the .ipa file?

Verify app store connect API
 
 
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