# Affiliate

> Referral links, how commission is computed from top ups, and the commission balance on Vikey.

Every Vikey account has a referral code. Bring people to Vikey and earn commission on their top ups.

## Referral link

A referral link looks like:

```text
https://vikey.ai/?ref=your-code
```

The default code has 8 characters. You can replace it in **Affiliate** with your own: 3 to 20 characters of letters, digits, `-` or `_`, not already taken. Upper and lower case count as the same.

People who arrive through the link get your code filled in when they sign up. The code can also be typed on the sign-up form. An invalid code is rejected with a clear message instead of being silently ignored.

## How commission is computed

- Commission comes from **top ups**, not from API usage.
- As soon as someone you referred completes a top up, a percentage of that top up goes to your commission balance.
- The current rate, including a first top up promo when one is running, is always shown in **Affiliate**.

## Commission balance

The commission balance is separate from your usage balance. Commission history and withdrawals are in **Affiliate**.

Source: https://docs.vikey.ai/en/account/referral/