Is it possible to add captcha to a customized auth0 login form?
Helo @mustafa.sahin - welcome to the Auth0 Community!
It is possible to do it with our Bot Detection feature, and is available for our Enterprise customers. If you are currently an Enterprise customer, please, reach out to your Technical Account Manager, and they will be able to assist with the setup.
Otherwise, you would have to implement the solution from scratch yourself in your code.