Amazing! You have come a long way already when arriving at this section.
As explained in the previous step, you may sometimes have access to a Test Environment, and at other times, it is directly to a Production Environment.
Jump from a Test Environment to a Production Environment
Please read the instructions detailed in the "User Guide" section of the API you're using. Across the different sub-sections, you should find instructions on how to request access to a Production Environment. Often, your usage of the API in a Test Environment will be evaluated.
I already have access to a Production Environment, but I need a higher Rate Limit.
This is a common scenario. Get to know more about this next step: Get a Higher Rate Limit