Surface: Authentication API · application/problem+json Type URI: https://docs.zeroset.com/problems/expired_token Code: expired_token HTTP status: 400

The device authorization request expired or its one-time code was already used.

Resolving it

Start a new device login and approve the newly displayed user code.

Response shape

{
  "type": "https://docs.zeroset.com/problems/expired_token",
  "title": "Device request expired",
  "status": 400,
  "code": "expired_token",
  "detail": "a human-readable explanation"
}

Every field is required. Clients must reject an authentication problem whose type is not exactly the expansion shown above — the Nebula SDKs do.