Sign in to Token Metrics. Then, proceed to click on the top right of the screen where your name is displayed.
Now, proceed to click on "Affiliate Program". You will be taken to another screen, that looks like this:
The bolded text in the square is your affiliate code. You may share this code with other people if you want. If they use your code to sign up they will get a 10% discount and you will also get 40% commission for 12 months.