myCred Points Cap allows you to enforce limits on the number points a particular user can earn at a certain time. You can set limits on the users’ ability to earn points whether those rules limit them for a day, a week, a month or even a lifetime.

Allocate Maximum Point Limits
Set the limit on the maximum number of points your users can earn.

Set Point Limit
Set limits on earning points according to days, weeks, months or lifetime.

This addon requires the free myCred core plugin found here.