Protocol's buoyUSD Token
Overview
buoyUSD is the internal unit of account and credit token that powers the Buoy.Loan borrowing system. It represents the on-chain claim that a borrower has minted against their staked HYPE tokens — effectively acting as the protocol’s stable, non-transferable debt instrument until it is repaid or converted through liquidity markets.
When a user borrows from Buoy.Loan, the protocol mints buoyUSD against their validator-staked HYPE. This minted buoyUSD can then be exchanged into external stablecoins such as USDC or USDh via Morpho Vaults, giving borrowers real, off-rampable liquidity while maintaining full on-chain transparency.
Design and Purpose
The buoyUSD token was designed to serve three critical functions within the Buoy ecosystem:
Credit Representation: buoyUSD tracks the exact borrowed value against each staker. It exists only as long as an outstanding loan is active and is burned progressively as validator rewards repay the position.
Liquidity Routing Asset: buoyUSD acts as the intermediary asset connecting HYPE-backed borrowing with Morpho liquidity pools. Borrowers never need to interact with buoyUSD directly — the protocol handles minting, conversion, and redemption automatically under the hood.
Stability Layer: buoyUSD is always fully collateralized by staked HYPE positions that are protected from liquidation. Its limited issuance (capped by the global 10% LTV ratio) ensures that total supply is tightly coupled to validator-secured backing.
Token Mechanics
Minting: When a user borrows, Buoy.Loan mints buoyUSD equivalent to up to 10% of the current staked HYPE USD value.
Conversion to Stablecoins: Immediately after minting, buoyUSD can be swapped through Morpho Vaults into USDh or USDC. The user receives the chosen stablecoin directly while buoyUSD remains in circulation within the vault system.
Repayment and Burning: As validator rewards accrue, the protocol automatically purchases and burns buoyUSD from circulation, reducing both the user’s debt and the total buoyUSD supply. When the entire loan balance is repaid, the user’s buoyUSD obligation is fully removed on-chain.
Backing and Stability
Each buoyUSD is indirectly backed by staked HYPE through the validator layer. Since staked HYPE cannot be liquidated or withdrawn mid-loan, the buoyUSD supply remains fully collateralized until the protocol closes the debt position. Because minting is strictly limited to 10% of collateral value, buoyUSD maintains a strong peg relationship within its exchange vaults, supported by Morpho’s liquidity mechanisms and arbitrage incentives.
Role in the Ecosystem
Within the Buoy.Loan architecture, buoyUSD links all participants:
Borrowers mint buoyUSD against staked HYPE.
Liquidity Providers deposit USDC/USDh into Morpho markets that trade against buoyUSD.
Portocol's Validator generate yield that automatically flows toward buoyUSD buyback, repayment, and burning.
This circular flow ensures that buoyUSD supply is always directly tied to active debt positions and validator performance, forming the foundation of Buoy’s sustainable, self-repaying credit system.
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