Fund your wallet
Hold USDC on Arc. It pays for gas and is the asset you supply or borrow. On testnet, claim USDC from the faucet and mint tWETH in the app.
Get USDC →ARC-NATIVE CREDIT · USDC SETTLEMENT
Dollar credit rails for the internet economy.
Arcc Systems is a focused money market built around USDC settlement on Arc. Supply stable liquidity, borrow against governed collateral, and monitor risk through transparent onchain accounting.
01 / HOW IT WORKS
From wallet to credit line in four steps.
Every action is a single transaction from your own wallet. Nothing is custodied off-chain, and you can repay or withdraw at any time.
Supply or post collateral
Supply USDC to earn the variable supply rate, or deposit tWETH as collateral to unlock borrow power.
Add collateral →Borrow USDC
Borrow up to 70% of your collateral value. Keep your health factor above 1 as prices move.
Borrow →Repay and withdraw
Repay principal plus interest whenever you like, then withdraw your collateral or your supplied USDC.
Repay →02 / PRODUCT
A narrow market by design.
One debt asset keeps liquidity, interest accrual, accounting, and solvency easier to reason about. New collateral types should enter only after liquidity and independent review support them.
Supply USDC
Provide stable liquidity and earn a utilization-driven variable rate from borrowers.
Supply in app →Borrow USDC
Use approved collateral to draw USDC while tracking borrow power and health factor.
See market design →Transparent risk
Caps, oracle freshness, liquidation thresholds, governance and emergency pause paths are visible by design.
Review security →03 / INTEREST RATES
Rates follow utilization.
The borrow rate rises gently until the pool is 85% borrowed, then steeply, so suppliers can always get liquidity back. Suppliers earn what borrowers pay, minus the reserve share.
Interest rate model
Annual rates by pool utilization
Borrow APRSupply APRCurrent utilization
04 / RISK PARAMETERS
The limits, in numbers.
These values are read live from the contracts. They define how much you can borrow, when a position can be liquidated, and how the pool protects suppliers.
Max loan-to-value70%
Borrow up to this share of your collateral value.
Liquidation threshold78%
Once debt passes this share of collateral value, the health factor drops below 1.
Liquidation bonus5%
Extra collateral a liquidator receives for repaying your debt.
Close factor50%
The most of a position's debt that one liquidation can repay.
Reserve factor10%
Share of borrower interest kept as protocol reserves against bad debt.
Pool borrow cap500,000 USDC
The most USDC that can be borrowed from the pool in total.
Collateral: tWETH, priced by the protocol oracle at $2,000. Full definitions are in the docs.
05 / STACK
Built around Arc’s financial primitives.
Arc is EVM-compatible and uses USDC as native gas. Arcc Systems keeps user-facing debt and yield accounting in ERC-20 USDC units while handling Arc-specific precision deliberately.
APPLICATIONArcc Systems MarketsSupply · Borrow · Repay · Withdraw
RISKOracle + Caps + LiquidationPrice feeds · capped exposure
SETTLEMENTUSDC on ArcStablecoin-native gas · deterministic settlement
06 / RELEASE STATUS
Built to graduate to mainnet.
Lending, liquidation and pause/recovery flows have been exercised onchain. Mainnet activation follows independent audit, verified oracle configuration, monitoring, and Safe multisig / Timelock governance with a low-cap initial launch.