| Name | Type | Description | Notes |
|---|---|---|---|
| label | string | Contains a German label for the input field that you should provide to the user. Also, these labels are used to identify login fields on the API-level, when you pass credentials to the service. | |
| is_secret | bool | Whether this field has to be treated as a secret. In this case your application should use a password input field instead of a cleartext field. | |
| is_volatile | bool | This field depicts whether the given credential is volatile. If a field is volatile, it means that the value for the field, which is provided by the user, is valid only for a single authentication and then gets invalidated on bank-side. If a login credential field is volatile, it is not possible to store it in finAPI, as stored credentials will never work for future authentications. |