Is there any possible way to enter into xibo without client_id and secret_id through api

It is not possible to access the Xibo API without the Client ID and Secret ID. This authentication is required to ensure only authenticated users are able to access the API.

I have included a link below to the API Introduction Guide:

Can you clarify what you are hoping to use the application for and why you do not wish to use the Client ID and Secret ID credentials?