Aster DEX, a privacy-focused decentralized exchange running on its own Layer 1 chain, has officially launched AOS-1 — the first project under the Aster Open Standards. Activated around June 25, 2026, the upgrade introduces permissionless spot listings and a controversial negative fee structure.
AOS-1 Listing Mechanism: API Checks, 50,000 USDT Fee, On-Chain Voting
Under AOS-1, any token already listed on Binance Spot or included in the Binance Alpha program is automatically eligible. Eligibility is verified through an API, removing manual gatekeeping. Projects pay a one-time fee of 50,000 USDT to apply. On-chain validators then vote, typically within 3 business days. If approved, the trading pair goes live on Aster Spot; if rejected, the fee is returned.
Negative Maker Fee: Earn 0.25 bps for Providing Liquidity
The most striking element of the update is the fee schedule. For every AOS-1 trading pair, the maker fee is set at -0.25 bps. That means market makers actually earn a rebate when their limit orders are filled, instead of paying. The design aims to attract immediate liquidity to new pairs, which usually suffer from thin order books that deter serious traders.
CEO Lenard explained that AOS-1 targets protocol-level self-custody combined with permissionless deployment, so projects don't need anyone's approval to build a market. The rebate structure incentivizes every participant to act as a market maker, not just large firms. Liquidity, in Lenard's view, should come from the user base itself.
ASTER Token Price Shows Minimal Reaction
Following the announcement, the $ASTER token remained stable. It trades at 0.623 dollars at the time of writing, up 0.54% in 24 hours. Market cap holds at 1.67 billion dollars, with daily trading volume of 81.5 million dollars. Despite being significantly above its all-time low, the token faces a monthly decline of 8.7%.
Community Raises Concerns About Sustainability of Rebate-Driven Depth
Daily active users have climbed since the news broke, but some traders question whether order book depth will persist after the initial rebate excitement fades. As crypto listings shift toward more open models in 2026, Aster's bet on permissionless spot listings and aggressive rebates pressures rivals to rethink their approach. The token's price action in the coming weeks will likely reveal whether this liquidity strategy sticks or fades.