Sui launched gasless stablecoin transfers on mainnet on May 20, 2026, introducing a protocol-level feature that lets users send supported stablecoins without holding SUI for transaction fees. The official Sui Foundation announcement says eligible peer-to-peer stablecoin transfers now process with $0.00 transfer fees as the feature rolls out across the network.
The launch is limited to supported stablecoins and does not remove gas requirements across the entire network. Sui’s documentation states that the feature applies to qualified peer-to-peer transfers, while non-allowlisted tokens, SUI transfers, NFT mints, swaps and other Move calls still require normal gas payment, keeping the zero-fee model narrowly scoped by design.
Address Balances Power the New Transfer Model
The feature is built on Address Balances, a new canonical balance system for fungible assets tied directly to Sui addresses. Sui documentation says Address Balances coexist with the existing Coin<T> model, but simplify transactions by removing coin-selection logic and allowing automatic deposit merging into a single address-owned balance for each asset type.
For gasless stablecoin transfers, the mechanism uses the Address Balances Move API, especially 0x2::balance::send_funds<T>, with gas=0 and gas_budget=0. Sui documentation also sets a minimum transfer balance of 0.01, with transfers below that threshold not executed.
The current allowlist includes USDC, USDSUI, SUI_USDE, USDY, FDUSD, AUSD and USDB, according to Sui’s developer documentation. That matches the seven-token launch scope described in Sui’s announcement, making stablecoin eligibility dependent on protocol configuration that can change across future versions.
Fireblocks Support Adds Institutional Distribution
Sui said Fireblocks had integrated the new solution before rollout as part of the network’s payments expansion, while Fireblocks separately said it supports the Sui protocol upgrade and that gasless support would follow. That framing makes Fireblocks part of the infrastructure rollout, though client-level availability should be read according to Fireblocks’ own implementation timeline.
The practical change is a reduction in wallet-funding friction for stablecoin payments: users sending eligible assets no longer need to acquire SUI first just to move digital dollars. Still, Sui’s documentation notes that when the network is congested, transactions paying gas are prioritized over gasless stablecoin transfers, so zero-fee execution does not guarantee priority settlement.
For now, the confirmed development is specific: Sui has activated gasless peer-to-peer transfers for seven supported stablecoins through Address Balances, with standard gas rules still applying to broader on-chain activity. Future expansion to additional stablecoins or privacy-focused upgrades remains part of the roadmap rather than a completed deployment.