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POST
Continue step-up challenge

Authorizations

Authorization
string
header
required

Access token obtained from session refresh

Body

application/json
challenge_token
string
required

The current challenge token.

Example:

"eyJhbGciOiJFZERTQSIsInR5cCI6IkpXVCJ9..."

verification_token
string
required

The verification token from the completed step.

Example:

"eyJhbGciOiJFZERTQSIsInR5cCI6IkpXVCJ9..."

Response

OK

challenge_token
string
required

The updated challenge token for the next step or final grant.

Example:

"eyJhbGciOiJFZERTQSIsInR5cCI6IkpXVCJ9..."

public_key_credential_request_options
object

WebAuthn PublicKeyCredentialRequestOptions in the WebAuthn Level 3 JSON form (binary fields are base64url-encoded). Present only when the step-up step the response advanced to is verify_passkey; pass it to navigator.credentials.get({ publicKey }). The frontend SDKs cache it keyed on the challenge id and run the assertion automatically.