Whether sign up is restricted to email addresses, phone numbers and usernames that are on the allowlist.
from_email_addressstring nullable
The local part of the email address from which authentication-related emails (e.g. OTP code, magic links) will be sent.
Only alphanumeric values are allowed.
Note that this value should contain only the local part of the address (e.g. foo for foo@example.com).
progressive_sign_upboolean nullable
Enable the Progressive Sign Up algorithm. This feature is deprecated, please contact support if you need assistance.
test_modeboolean nullable
Toggles test mode for this instance, allowing the use of test email addresses and phone numbers.
Defaults to true for development instances.
Response
InstanceSettings Server API
object'instance_settings'
String representing the object's type. Objects of the same type share the same value.
idstring
restricted_to_allowlistboolean
from_email_addressstring
progressive_sign_upboolean
enhanced_email_deliverabilityboolean
Deprecated. When enabled, production authentication emails for this instance are sent through Clerk's legacy managed email delivery path. This setting is being retired; use the instance's configured email sending domain instead.