SuiLend
SuiLend — Lending & Borrowing on Sui
SuiLend is a non-custodial lending protocol on the Sui blockchain, letting users deposit assets to earn yield or borrow against collateral at transparent, algorithmic rates.
Open App Learn MoreLive Market Snapshot
Rates update every block on Sui.
How It Works
The SuiLend platform operates through a set of audited smart contracts on Sui. No intermediary holds your funds. Every position is visible on-chain.
Connect a Sui wallet
Any Sui-compatible wallet works — the protocol does not custody keys. The connection is read-only until you sign a transaction.
Choose a market and asset
The Main Market covers SUI, USDC, suiUSDT, WBTC, xBTC, DEEP, WAL, and a growing list of Sui ecosystem LSTs. Specialized markets — Ember, Matrixdock Gold, Bucket — serve different asset pairs with separate risk parameters.
Deposit to earn or post as collateral
Deposited assets earn the current supply APR. If you want to borrow, your deposit counts as collateral up to its loan-to-value limit — 77% for USDC, 70% for SUI, 60% for BTC variants.
Borrow and manage your position
Draw a loan in any borrowable asset. The dashboard shows your health factor in real time. Add collateral or repay partially at any time — no lock-up periods.
Claim rewards
Select pools distribute SEND or sSUI tokens to depositors and borrowers each epoch. Rewards accrue automatically and can be claimed from the dashboard. See the questions page for reward details.
Why SuiLend
Plenty of lending protocols exist across EVM chains. What makes the SuiLend protocol different comes down to a few measurable factors.
Sui's throughput advantage
Sui processes transactions in parallel using object-centric storage. Liquidations, deposits, and repayments confirm in under 400 ms at typical network load — faster than most EVM L2s.
Transparent, algorithmic rates
Interest rates are a pure function of utilization. No admin can manually override them between blocks. You can read the rate formula directly in the published contract code.
Multi-market architecture
Isolated pools — Main, Ember, Matrixdock Gold, Bucket — keep risk contained. A problem in one market cannot drain another. This design draws inspiration from Uniswap's pool isolation approach, applied to lending.
ERC-4626-style yield accounting
Deposit receipts (cTokens) accrue interest continuously. The accounting model is close to the ERC-4626 vault standard, making it familiar to DeFi developers and auditors alike.
For a full technical breakdown, visit the about page or read the official documentation at docs.suilend.fi.
SuiLend by the Numbers
Approximate figures drawn from on-chain data. Numbers shift with market conditions; the direction of growth has been consistently upward since the v1 launch in 2024.
DeFi TVL methodology is explained further on Wikipedia's DeFi article. The SuiLend protocol follows standard definitions: TVL equals total deposits minus borrowed amounts.
Key Features
Non-custodial by design
Funds move directly between user wallets and the protocol's smart contracts. The team behind SuiLend cannot access deposits or freeze withdrawals.
Liquid staking collateral
sSUI, kSUI, mSUI, and a dozen other LSTs qualify as collateral. Stake yield keeps accruing while the tokens sit in the lending pool — no wasted capital.
Real-time health monitoring
The dashboard recalculates health factor on every new Sui block. Borrowers receive an early warning before approaching the liquidation zone.
Cross-asset borrowing
Post SUI as collateral, borrow USDC. Post WBTC, borrow suiUSDT. Any borrowable asset can be drawn against any accepted collateral in the same market.
Incentive layer via SEND
The SEND token distributes protocol revenue and governance weight to active participants. Rewards are proportional to position size and duration.
Foundry-tested contracts
The core smart contracts were developed and fuzz-tested with Foundry, the industry-standard Rust-based EVM testing framework, before adapting the architecture to Sui's Move VM.
Permissionless market creation
Third-party teams can propose new isolated markets — as Ember and Matrixdock have done — without altering the Main Market's risk parameters. Each market is self-contained.
FAQ
Common questions about the SuiLend platform. More detailed answers live on the SuiLend Questions page.
What is SuiLend?
SuiLend is a non-custodial lending protocol built on the Sui blockchain. Users deposit assets as collateral and borrow against them at algorithmic interest rates — entirely on-chain, no sign-up required.
How do I start lending on SuiLend?
Connect a Sui-compatible wallet, open the Main Market, select an asset — USDC or SUI are the most liquid — enter a deposit amount, and confirm the transaction. That's it. Interest starts accruing immediately.
Is SuiLend safe and audited?
The SuiLend platform has undergone multiple independent security reviews. Contract code is public, and a bug bounty program covers responsible disclosures. No protocol is risk-free; always size positions accordingly.
What assets can I deposit?
The Main Market accepts SUI, sSUI, USDC, suiUSDT, USDsui, LBTC, WBTC, xBTC, suiETH, DEEP, WAL, and over a dozen Sui LSTs. Specialized markets add eTHIRD, eEARN, XAUm, and USDB.
How are interest rates calculated?
Rates are a direct function of pool utilization — the share of deposits currently borrowed. High utilization pushes borrow APR up, attracting more depositors and reducing demand until equilibrium returns.
Can I borrow if I only have volatile collateral?
Yes, but the loan-to-value cap is lower. SUI and ETH variants carry a 60–70% LTV, compared to 77% for stablecoins. The difference exists to buffer against sudden price drops.
What happens if my position is liquidated?
When collateral value falls below the liquidation threshold, liquidators repay part of the debt and receive collateral at a discount. The penalty encourages fast action, protecting the pool from bad debt.
Why should I use SuiLend instead of a centralized lender?
Every position is visible on Sui's public ledger. No account freeze risk, no counterparty custody. The SuiLend protocol cannot be instructed to halt withdrawals by any regulator or company.
How do I earn SEND token rewards?
Certain pools distribute SEND each epoch. Rewards accrue proportionally to your share of the pool. Open the Claim section of the dashboard to collect accumulated tokens at any time.
What is sSUI and how does it differ from SUI?
sSUI is a liquid staking token from SpringSui. It earns native Sui staking yield passively. Inside SuiLend's pool, it also earns supply APR on top — two yield streams simultaneously.
Can I use SuiLend on mobile?
The platform is fully responsive. Any Sui wallet app that supports dApp connections works on mobile. All market functionality — deposit, borrow, repay, withdraw — is accessible without a desktop.
What is the Ember Market?
Ember is an isolated lending pool inside SuiLend focused on eTHIRD, eEARN, and USDC. Its risk parameters are independent of the Main Market. A position in Ember cannot affect Main Market liquidity.
How does SuiLend handle oracle pricing?
The protocol reads on-chain price feeds that update continuously. Collateral is valued at the latest feed price before each transaction. This ensures liquidation thresholds are enforced without delay.
Where can I find the SuiLend smart contract source code?
Contract addresses and technical documentation are at docs.suilend.fi. Source code and audit reports are shared through official Discord announcements and the team's GitHub repositories.