Embedded login allows your users to log directly into your application and transmit their credentials to the Auth0 server for authentication. We do not recommend using Embedded Login. To learn more, read Centralized Universal Login vs. Embedded Login.
If you must implement embedded login, you should set up a custom domain. You can then use one of our libraries (such as the Lock Widget or Auth0.js SDK) to implement login in your application. You can also use our API.
Auth0 supports embedded login with passwordless connections for multiple application types. You can choose to configure embedded login by reading one of the following articles: