App Attest Validation & Request

I'm trying to confirm the correct URL for Apple Attest development. There seems to be a fraud metric risk section that uses this: https://data-development.appattest.apple.com/v1/attestationData

However the key verification seems to use this: https://data-development.appattest.apple.com/v1/attestation

Currently I'm attempting to verify the key, so the second one seems likely. However I keep receiving a 404 despite vigorous validation of all fields included in the JSON as well as headers.

Can anyone confirm please, which URL I should be sending my AppleAttestationRequest to?

The attestation key is verified on your server. I am not sure what you are trying to do with the second link.

Attestation Object Validation Guide explains how you need to verify the attestation key.

App Attest Validation & Request
 
 
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