Aster Referral Code:
MMTz04

The current Aster referral code is MMTz04. Using it gives you a 5% discount on your trading fees across Aster's perp and spot markets. The discount comes from Aster's referral program: the referrer's 10% commission is split 5%/5%, and your 5% share is credited back to you as a fee rebate.

To apply the code, visit www.asterdex.com/en/referral/MMTz04 and sign up. The code is carried in the link, so it is attached to your account the moment you create it — no promo code to type, no manual activation. Once set, the 5% discount applies to your trades automatically.

Important: the Aster referral relationship can only be set at sign-up. If you create your account without a referral link or code, there is no way to add one later. The relationship lasts 365 days, and it stacks with the separate 5% discount for paying fees in ASTER.

The Aster referral code MMTz04 gives the referred user a 5% discount on their trading fees, set automatically at sign-up and lasting for the 365-day referral relationship. Aster's base fees are already among the lowest available — on perps, maker fees are 0% and taker around 0.04%; on spot, around 0.005% maker / 0.04% taker. A 5% discount on a 0.04% taker fee reduces your effective rate to roughly 0.038%. In dollar terms that is small per trade — about $0.20 saved per $10,000 of taker volume — so the value is not a big headline figure but rather locking in the best possible rate at zero cost. It also stacks with the separate 5% discount for paying fees in ASTER. Because it can only be set at sign-up and never added later, applying it from day one is the only way to capture it. Always verify the current rates on Aster before trading, as fees can change.

How Does the Aster Referral Program Work?

Aster pays a default 10% commission on a referred user's trading fees. The referrer chooses how to split it; this site uses a 5%/5% split, so your half is credited back to you as a fee rebate — a 5% discount on your trades across Aster's perp and spot markets. The relationship is set when your account is created and there is no promo code to re-enter on each trade. It also stacks with the 5% pay-in-ASTER discount.

How Long Does the Aster Referral Last?

The referral relationship lasts 365 days from sign-up. During that period your 5% discount applies automatically to the fees you pay. Because Aster's base fees are already low — perps maker 0% / taker around 0.04%, spot maker around 0.005% / taker 0.04% — the discount is best understood as locking in the lowest available rate rather than a large dollar saving. Always verify the current rates before trading.

How Do You Get an Aster Referral Code?

Use the referral code MMTz04 displayed on this page. Click the referral link above to visit www.asterdex.com/en/referral/MMTz04, sign up, and the 5% discount is set on your new account. If you already trade on Aster and want your own referral code to share, open the Referrals section inside the Aster app to generate a personal link. Remember: the referral relationship can only be set at sign-up, so share yours before your friends create their accounts.

Unlike centralized exchanges that let you enter promo codes at any time, Aster's referral relationship can only be set at account creation. When you sign up through the referral link, the code is attached to your account at that moment. There is no way to add a referral retroactively — users who create an account without one do not get the 5% discount.

The referral discount also stacks with the separate 5% pay-in-ASTER discount, which you can enable to pay your trading fees in $ASTER. Stacking the two is the simplest way to reach the lowest effective rate on Aster. For a detailed breakdown of every fee and discount, see our complete fee guide.

The program works across Aster's markets, including crypto perps, 24/7 high-leverage (up to 1001x) trading, and spot. To see how Aster stacks up against the competition, read our Aster vs Hyperliquid comparison. Whether you are a casual trader or a high-frequency one, the 5% discount applies uniformly to the fees you pay.