🥨Protocol Adapters

CrediX integrates with multiple DeFi lending and borrowing protocols via a standardized Protocol Adapter system. These adapters abstract away the complexity of different protocol interfaces and enable seamless routing, deposits, and withdrawals — all through a unified backend.

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What Is a Protocol Adapter?

A Protocol Adapter is a modular smart contract component that connects CrediX to an external lending/borrowing protocol. It translates the generic actions (e.g., deposit, withdraw, get APY) into the protocol-specific implementation under the hood.

Each adapter conforms to a shared interface and can be added, removed, or upgraded without modifying core logic.

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Key Functions of an Adapter

Function	Description
deposit()	Supplies assets into the underlying protocol
withdraw()	Withdraws assets from the protocol and returns them to the StrategyManager
getCurrentAPY()	Returns the current lending or borrowing rate (depending on the mode)
getProtocolName()	Returns a human-readable name for the protocol

These functions allow CrediX to interact with any integrated protocol in a consistent way, no matter how different their underlying smart contracts are.

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Adapter Interface

All adapters implement a base interface like the following (Solidity-style):

solidityCopyEditinterface IProtocolAdapter {
    function deposit(uint256 amount) external;
    function withdraw(uint256 amount) external;
    function getCurrentAPY() external view returns (uint256);
    function getProtocolName() external view returns (string memory);
}

This ensures each adapter remains interchangeable, enabling dynamic routing and modular scaling.

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Supported Protocols (Initial Phase)

CrediX includes built-in adapters for major DeFi protocols:

• Aave Adapter

• Silo

• Euler

Each adapter is built with rigorous testing and fallback protections to ensure safety during interaction.

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Benefits of Using Adapters

• Plug-and-Play Architecture Add new protocols without redeploying core contracts.

• Protocol Diversity Access a broader spectrum of interest rates and features.

• Upgrade Flexibility Upgrade or replace individual adapters without disrupting user positions.

• Gas Optimization Each adapter is optimized for low-overhead interactions with its target protocol.

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Adapter Lifecycle

1. Deployment The adapter is deployed with a reference to its protocol’s relevant smart contracts.

2. Registration The adapter is registered with the StrategyManager contract.

3. Integration Once verified, it becomes part of the routing engine and can receive user funds.

4. Maintenance If a protocol changes, the adapter can be swapped out with a new version safely.

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Example: Aave Adapter Flow

1. User deposits USDC

2. StrategyManager selects Aave Adapter based on yield

3. Aave Adapter calls LendingPool.deposit()

4. Funds are now earning yield in Aave, managed by CrediX