How to get the reputation for a specific user?

You can find the reputation report for a specific user in your Token of Trust HQ.

• Click on "Verification" in the left-side menu.
• Select ‘User’ in the filter by email

• Clicking on the user's row will bring up their Reputation Report.

API Access

Additionally, you can get reputation reports and approval status through the API.

The closest to what you need can be found by searching the plugin for this: 

tot_get_wp_user_reputation

This takes the wp_user but be careful not to hit this too fast to avoid getting automatically-blocked as a bot.