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?