Good morning guys,
I would like to know if anyone knows how I can invite people to collaborate on a specific JIRA project in the Standard version without this user incurring any cost. I manage my company's projects by JIRA and I wanted to direct some activities for my clients to act as well as view the JIRA boards like this:

However, I wanted these users not to count in the cost of my license because I have thousands of customers.
Does anyone know how to invite only as a viewer of the project or even as a limited member?