# Retrieve authentication options Retrieves customer authentication options. Endpoint: GET /authentication-options Version: latest Security: SecretApiKey, JWT ## Response 200 fields (application/json): - `passwordPattern` (string,null) Allowed password pattern. Example: "/^[0-9]+$/" - `credentialTtl` (integer) Default credential lifetime, in seconds. - `authTokenTtl` (integer) Default auth-token lifetime, in seconds. - `resetTokenTtl` (integer) Default reset-token lifetime, in seconds. - `otpRequired` (boolean) Specifies if a One-Time Password (OTP) is required to exchange a token. - `_links` (array) Related links. - `_links.href` (string) Link URL. - `_links.rel` (string) Type of link. Enum: "self" ## Response 401 fields (application/json): - `status` (integer) HTTP status code. - `type` (string) Problem type in the form of a [URI](https://tools.ietf.org/html/rfc3986) reference. It should provide human-readable documentation for the problem type. When this member is not present, its value is assumed to be "about:blank". - `title` (string) Short, human-readable summary of the problem type. Other than for the purposes of localization, this should not change from occurrence to occurrence of the problem. - `detail` (string) Human-readable explanation that is specific to this occurrence of the problem. - `instance` (string) URI reference that identifies the specific occurrence of the problem. It may or may not yield further information if dereferenced. ## Response 403 fields (application/json): - `status` (integer) HTTP status code. - `type` (string) Problem type in the form of a [URI](https://tools.ietf.org/html/rfc3986) reference. It should provide human-readable documentation for the problem type. When this member is not present, its value is assumed to be "about:blank". - `title` (string) Short, human-readable summary of the problem type. Other than for the purposes of localization, this should not change from occurrence to occurrence of the problem. - `detail` (string) Human-readable explanation that is specific to this occurrence of the problem. - `instance` (string) URI reference that identifies the specific occurrence of the problem. It may or may not yield further information if dereferenced.