Help with the Twilio API function

I have been trying to extract the url to connect my twilio api to thunkable. However, as shown in most videos, the API explorer functionality which houses the url has not shown up in my screen. Could someone please help me out on this and how to get my url?

A good place to start is the API documentation page for the service you’re wanting to use. It should list a Base URL and other parameters needed to configure it.

Post a link to the documentation you’re using (for example, Programmable Messaging API Overview | Twilio) and any base URL and parameters you intend to use.