Plugin Building: Dynamic auth credentials in header

I’m building my first plugin (API calls only) and can’t seem to find out how to set dynamic authentication credentials for the API calls.

Example: https://EMAIL:APITOKEN@webpage.com
The email and api token should be dynamic, as I’m making the calls on behalf of different users created in Bubble.
In the API connector in my app, I can do this by marking the “not private” checkbox, but this is not an option in the Plugin builder.

Could anyone guide me as to how I would do this?

Just add the the URL to look like this

https://[Email]:[APITOKEN]@weboage.com

Make sure you set it as public

yes as @AliFarahat suggests making sure you do this at call level with authentication method set to self handled.

Thanks!