The self-custodial wallet adds Sui mainnet to its growing roster of supported layer-1 networks, continuing an aggressive multi-chain expansion.
KuCoin’s Web3 wallet now supports Sui mainnet assets, giving users the ability to manage tokens on the Move-based layer-1 blockchain directly from the platform’s self-custodial interface.
For Sui, the partnership deepens its relationship with one of the crypto industry’s larger exchange ecosystems. KuCoin first listed SUI for spot trading back in May 2023 and enabled USDC deposits on the Sui network in October 2024. Adding full wallet support is the logical next step, one that moves beyond simple trading pairs into the kind of native asset management that DeFi-oriented users actually want.
What the integration actually does
With Sui support live, KuCoin Web3 Wallet users can hold, send, receive, and interact with tokens built on the Sui network without leaving the wallet interface. That includes access to decentralized applications and cross-chain swaps, features the wallet already offers for its other supported networks.
Sui itself is a layer-1 blockchain built on the Move programming language, originally developed at Meta for the now-defunct Diem project. Its architecture uses an object-centric data model rather than the account-based model found in Ethereum. In practical terms, this means the network handles certain types of transactions, particularly those that don’t involve shared state, with notably high throughput.
The blockchain has positioned itself around the idea that “money moves as freely as messages,” a tagline aimed at the scalable finance and global payments use case.
KuCoin’s multi-chain playbook
This Sui integration doesn’t exist in a vacuum. KuCoin’s Web3 wallet has been on something of a chain-collecting spree throughout 2025 and into 2026, adding support for networks including Robinhood Chain, 0G, Monad, and HyperEVM.
What this means for the Sui ecosystem
That said, wallet integrations alone don’t move markets. There were no immediate signs of price fluctuations or notable trading volume changes in SUI following the announcement.
