Optional bindingBinding code (for OOB challenges with binding)
MFA token from challenge flow
Optional oobOut-of-band code (for OOB challenges)
Optional otpOne-time password (for OTP challenges)
Optional recoveryRecovery code (for recovery code verification)
Parameters for verifying an MFA challenge.
The grant_type is automatically inferred from which verification field is provided:
otpfield → MFA-OTP grant typeoobCodefield → MFA-OOB grant typerecoveryCodefield → MFA-RECOVERY-CODE grant type