Chedda Protocol

Chedda is a multi-collateral lending protocol built on ERC4626 tokenized vaults. It supports ERC-20, ERC-721, and ERC-1155 collateral, enabling borrowing against a wide range of on-chain assets. The protocol includes a native CHEDDA token with a halving emission schedule and staking rewards, and is cross-chain capable via LayerZero OFT. Licensed under BUSL-1.1.

Architecture

graph TD
    LP[LendingPool<br/>ERC4626 Vault]
    DT[DebtToken]
    Oracle[IPriceFeed<br/>DIA Oracle]
    IRM[IInterestRateModel]
    Collateral[ERC20 / ERC721 / ERC1155<br/>Collateral]

    LP --> DT
    LP --> Oracle
    LP --> IRM
    LP --> Collateral

    CT[CheddaToken<br/>OFT] --> Dist[LockingGaugeRewardsDistributor]
    Dist -->|60%| Gauge[CheddaLockingGauge]
    Dist -->|40%| SP[StakingPool]

    AR[AddressRegistry] -.-> LP
    AR -.-> Dist

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LendingPool is the core vault: suppliers deposit assets and receive shares, borrowers post collateral and draw loans. DebtToken tracks outstanding debt as a non-transferrable ERC4626 token. Prices come from IPriceFeed (DIA oracle adapter), and interest accrues via a two-slope IInterestRateModel.

On the rewards side, CheddaToken mints emissions across 6 halving epochs. The LockingGaugeRewardsDistributor splits emissions between the CheddaLockingGauge (time-locked staking with boost multipliers) and StakingPool (standard ERC20 staking). AddressRegistry stores protocol-wide configuration and pool addresses.

Contract Overview

Contract	Description
LendingPool	ERC4626 vault implementing supply, borrow, and liquidation
DebtToken	Non-transferrable ERC4626 token tracking borrower debt
CheddaToken	OFT token with halving emission schedule (6 epochs)
CheddaLockingGauge	Time-locked CHEDDA staking with boost multipliers
StakingPool	Generic ERC20 staking with CHEDDA rewards
LockingGaugeRewardsDistributor	Distributes emissions across pools (60/40 gauge/staking split)
DefaultInterestRateModel	Two-slope kinked interest rate curve
DIAPriceFeed	DIA oracle adapter for token price feeds
AddressRegistry	Central registry for protocol addresses and pool management

Deployment

forge build
forge test
forge script script/<DeployScript> --rpc-url <RPC_URL> --broadcast

Security

• Hashlock Audit Report

Links

• Contract Documentation