Moonight Protocol
BTC-backed stablecoin protocol on Starknet
Moonight enables users to deposit BTC-denominated collateral (WBTC, tBTC, solvBTC) to mint moonUSD, a fully-backed stablecoin. The protocol combines a CDP engine, four specialized vault strategies, a stability pool, and a virtual debit card — all built natively on Starknet with Cairo smart contracts.
Core Components
| Component | Purpose |
|---|---|
| CDP Engine | Deposit BTC collateral → mint moonUSD at variable rates |
| Stability Pool | Deposit moonUSD → earn interest + liquidation collateral |
| Redemption Queue | Redeem moonUSD → receive BTC collateral at peg |
| Vault A | Delta-neutral funding rate arbitrage |
| Vault B | Leveraged BTC accumulation loop |
| Vault C | ERC-4626 yield optimizer (vmoonUSD) |
| Vault D | Covered call writing + PT/YT tokenization |
| Moonight Card | Virtual debit card funded from vaults |
Key Numbers
| Parameter | Value |
|---|---|
| Max LTV | 80% (WBTC) |
| Liquidation threshold | HF ≤ 1.0 |
| Interest rate range | 0.5% – 15% APR |
| Minimum debt | 100 moonUSD |
| Oracle | Pragma (BTC/USD, 3600s staleness) |
Network
Moonight is live on Starknet Sepolia testnet. All contracts are deployed and verified.