{ "axon_version": "1.0.0", "protocol": { "name": "Aave", "slug": "aave-v3-arbitrum", "version": "v3", "description": "Decentralized non-custodial liquidity protocol on Arbitrum One. Offers significantly lower gas costs than Ethereum mainnet with the full Aave V3 feature set and deep liquidity.", "category": "lending", "chain": { "id": 42161, "name": "arbitrum", "network": "mainnet" }, "contracts": { "pool": { "address": "0x794a61358D6845594F94dc1DB02A252b5b4814aD", "label": "Pool (LendingPool V3)", "verified": true }, "pool_addresses_provider": { "address": "0xa97684ead0e402dC232d5A977953DF7ECBaB3CDb", "label": "PoolAddressesProvider", "verified": true }, "oracle": { "address": "0xb56c2F0B653B2e0b10C9b928C8580Ac5Df02C7C2", "label": "AaveOracle", "verified": true }, "pool_data_provider": { "address": "0x69FA688f1Dc47d4B5d8029D5a35FB7a548310654", "label": "PoolDataProvider (AaveProtocolDataProvider)", "verified": true }, "a_token_impl": { "address": "0xa5ba6E5EC19a1Bf23C857991c857dB62b2Aa187B", "label": "AToken Implementation", "verified": true }, "variable_debt_token_impl": { "address": "0x81387c40EB75acB02757C1Ae55D5936E7c3bC3dC", "label": "VariableDebtToken Implementation", "verified": true }, "stable_debt_token_impl": { "address": "0x52A1CeB68Ee6b7B5D13E0376A1E0E4423A8cE26e", "label": "StableDebtToken Implementation", "verified": true } }, "links": { "website": "https://aave.com", "docs": "https://docs.aave.com/developers", "github": "https://github.com/aave/aave-v3-core", "governance": "https://governance.aave.com" } }, "actions": [ { "id": "supply", "name": "Supply Asset", "description": "Supply (deposit) an ERC20 asset to the Aave V3 lending pool on Arbitrum to earn interest. The depositor receives aTokens 1:1 which accrue interest in real-time.", "type": "supply", "parameters": [ { "name": "asset", "type": "address", "required": true, "description": "Address of the ERC20 token to supply on Arbitrum" }, { "name": "amount", "type": "uint256", "required": true, "description": "Amount to supply in the asset's smallest unit (wei). Use type(uint256).max to supply full wallet balance.", "constraints": { "min": "1" } }, { "name": "onBehalfOf", "type": "address", "required": true, "description": "Address that will receive the aTokens. Use msg.sender for self." }, { "name": "referralCode", "type": "uint16", "required": false, "description": "Referral code for integrator tracking. Use 0 for no referral.", "default": "0" } ], "constraints": { "min_amount": "1", "supported_tokens": "aave_arbitrum_listed_assets", "requires_position": false }, "approvals": [ { "type": "erc20_approve", "token": "asset", "spender": "pool", "amount": "exact_or_max" } ], "transaction_flow": [ { "step": 1, "action": "check_reserve", "description": "Verify the asset is listed, active, and not paused on Aave Arbitrum", "contract": "pool_data_provider", "method": "getReserveConfigurationData(address)", "conditional": "always", "returns": ["ltv", "liquidationThreshold", "liquidationBonus", "reserveFactor", "usageAsCollateralEnabled", "borrowingEnabled", "isActive", "isFrozen"] }, { "step": 2, "action": "check_supply_cap", "description": "Verify supply amount does not exceed the reserve's supply cap", "contract": "pool_data_provider", "method": "getReserveCaps(address)", "conditional": "always", "returns": ["borrowCap", "supplyCap"] }, { "step": 3, "action": "check_allowance", "description": "Check if the Pool contract has sufficient allowance to transfer the supply token", "contract": "asset", "method": "allowance(address,address)", "conditional": "always", "returns": ["allowance"] }, { "step": 4, "action": "approve", "description": "Approve the Pool contract to spend the supply token", "contract": "asset", "method": "approve(address,uint256)", "conditional": "if_allowance_insufficient" }, { "step": 5, "action": "execute", "description": "Supply the asset to the lending pool on Arbitrum", "contract": "pool", "method": "supply(address,uint256,address,uint16)", "returns": ["aTokensMinted"] } ], "risk_warnings": [ "Supplied assets can be borrowed by others — smart contract risk", "Interest rates are variable and can change based on utilization", "Arbitrum is an L2 — bridge risk and sequencer uptime risk apply", "Arbitrum sequencer downtime can prevent Chainlink oracle updates, affecting liquidation" ] }, { "id": "withdraw", "name": "Withdraw Asset", "description": "Withdraw a previously supplied asset from the Aave V3 lending pool on Arbitrum. Burns aTokens and returns the underlying asset.", "type": "withdraw", "parameters": [ { "name": "asset", "type": "address", "required": true, "description": "Address of the underlying ERC20 token to withdraw" }, { "name": "amount", "type": "uint256", "required": true, "description": "Amount to withdraw. Use type(uint256).max to withdraw full balance including accrued interest.", "constraints": { "min": "1" } }, { "name": "to", "type": "address", "required": true, "description": "Address that will receive the withdrawn tokens. Use msg.sender for self." } ], "constraints": { "min_amount": "1", "supported_tokens": "aave_arbitrum_listed_assets", "requires_position": true }, "approvals": [], "transaction_flow": [ { "step": 1, "action": "check_balance", "description": "Check the user's aToken balance on Arbitrum", "contract": "pool_data_provider", "method": "getUserReserveData(address,address)", "conditional": "always", "returns": ["currentATokenBalance", "currentStableDebt", "currentVariableDebt", "principalStableDebt", "scaledVariableDebt", "stableBorrowRate", "liquidityRate"] }, { "step": 2, "action": "check_health_factor", "description": "If asset is collateral, verify withdrawal keeps health factor above 1.0", "contract": "pool", "method": "getUserAccountData(address)", "conditional": "if_used_as_collateral", "returns": ["totalCollateralBase", "totalDebtBase", "availableBorrowsBase", "currentLiquidationThreshold", "ltv", "healthFactor"] }, { "step": 3, "action": "execute", "description": "Withdraw the asset from the lending pool on Arbitrum", "contract": "pool", "method": "withdraw(address,uint256,address)", "returns": ["amountWithdrawn"] } ], "risk_warnings": [ "Withdrawing collateral reduces health factor — may trigger liquidation", "Withdrawal may fail if pool liquidity is insufficient", "Arbitrum sequencer downtime can delay withdrawal execution" ] }, { "id": "borrow", "name": "Borrow Asset", "description": "Borrow an ERC20 asset from the Aave V3 lending pool on Arbitrum against supplied collateral. Arbitrum has deep Aave liquidity and low gas costs.", "type": "borrow", "parameters": [ { "name": "asset", "type": "address", "required": true, "description": "Address of the ERC20 token to borrow on Arbitrum" }, { "name": "amount", "type": "uint256", "required": true, "description": "Amount to borrow in the asset's smallest unit", "constraints": { "min": "1" } }, { "name": "interestRateMode", "type": "uint256", "required": true, "description": "Interest rate mode: 1 for Stable, 2 for Variable. Variable is recommended.", "constraints": { "enum": [1, 2] } }, { "name": "referralCode", "type": "uint16", "required": false, "description": "Referral code. Use 0 for no referral.", "default": "0" }, { "name": "onBehalfOf", "type": "address", "required": true, "description": "Address that will receive borrowed tokens and accrue debt" } ], "constraints": { "min_amount": "1", "supported_tokens": "aave_arbitrum_listed_borrowable_assets", "requires_position": true }, "approvals": [], "transaction_flow": [ { "step": 1, "action": "check_health_factor", "description": "Verify borrowing power on Arbitrum supports the requested amount", "contract": "pool", "method": "getUserAccountData(address)", "conditional": "always", "returns": ["totalCollateralBase", "totalDebtBase", "availableBorrowsBase", "currentLiquidationThreshold", "ltv", "healthFactor"] }, { "step": 2, "action": "check_borrow_cap", "description": "Ensure borrow amount doesn't exceed the reserve's borrow cap on Arbitrum", "contract": "pool_data_provider", "method": "getReserveCaps(address)", "conditional": "always", "returns": ["borrowCap", "supplyCap"] }, { "step": 3, "action": "check_reserve_borrowable", "description": "Verify asset is enabled for borrowing on Arbitrum", "contract": "pool_data_provider", "method": "getReserveConfigurationData(address)", "conditional": "always", "returns": ["borrowingEnabled", "stableBorrowRateEnabled", "isActive", "isFrozen"] }, { "step": 4, "action": "execute", "description": "Execute the borrow on Arbitrum", "contract": "pool", "method": "borrow(address,uint256,uint256,uint16,address)", "returns": ["debtTokensMinted"] } ], "risk_warnings": [ "Borrowing reduces health factor — liquidation occurs below 1.0", "Variable interest rates fluctuate with pool utilization", "Arbitrum sequencer downtime can prevent timely debt management and liquidation", "Aave on Arbitrum has a Chainlink sequencer uptime feed — liquidations pause during downtime with a grace period after recovery" ] }, { "id": "repay", "name": "Repay Borrowed Asset", "description": "Repay a borrowed asset to the Aave V3 lending pool on Arbitrum. Burns debt tokens and improves health factor.", "type": "repay", "parameters": [ { "name": "asset", "type": "address", "required": true, "description": "Address of the borrowed ERC20 token to repay" }, { "name": "amount", "type": "uint256", "required": true, "description": "Amount to repay. Use type(uint256).max to repay entire debt including interest.", "constraints": { "min": "1" } }, { "name": "interestRateMode", "type": "uint256", "required": true, "description": "Interest rate mode of the debt to repay: 1 for Stable, 2 for Variable", "constraints": { "enum": [1, 2] } }, { "name": "onBehalfOf", "type": "address", "required": true, "description": "Address of the user whose debt is being repaid" } ], "constraints": { "min_amount": "1", "supported_tokens": "aave_arbitrum_listed_borrowable_assets", "requires_position": true }, "approvals": [ { "type": "erc20_approve", "token": "asset", "spender": "pool", "amount": "exact_or_max" } ], "transaction_flow": [ { "step": 1, "action": "check_debt", "description": "Check current debt balance on Arbitrum", "contract": "pool_data_provider", "method": "getUserReserveData(address,address)", "conditional": "always", "returns": ["currentATokenBalance", "currentStableDebt", "currentVariableDebt"] }, { "step": 2, "action": "check_allowance", "description": "Check Pool allowance for repayment token", "contract": "asset", "method": "allowance(address,address)", "conditional": "always", "returns": ["allowance"] }, { "step": 3, "action": "approve", "description": "Approve the Pool to spend the repayment token on Arbitrum", "contract": "asset", "method": "approve(address,uint256)", "conditional": "if_allowance_insufficient" }, { "step": 4, "action": "execute", "description": "Repay the borrowed asset on Arbitrum", "contract": "pool", "method": "repay(address,uint256,uint256,address)", "returns": ["amountRepaid"] } ], "risk_warnings": [ "When repaying max, ensure sufficient balance to cover accrued interest", "Interest accrues between approval and repay — approve slightly more", "Arbitrum sequencer downtime may delay repayment execution" ] }, { "id": "flash_loan", "name": "Flash Loan", "description": "Execute an atomic flash loan from Aave V3 on Arbitrum. Borrow without collateral, execute logic, repay principal + 0.05% fee in same transaction. Very low gas costs on Arbitrum.", "type": "supply", "parameters": [ { "name": "receiverAddress", "type": "address", "required": true, "description": "Contract implementing IFlashLoanReceiver with executeOperation()" }, { "name": "assets", "type": "address", "required": true, "description": "Array of ERC20 token addresses to flash borrow on Arbitrum" }, { "name": "amounts", "type": "uint256", "required": true, "description": "Array of amounts to flash borrow for each asset" }, { "name": "interestRateModes", "type": "uint256", "required": true, "description": "Array of rate modes. 0 = repay in same tx, 1 = stable debt, 2 = variable debt.", "constraints": { "enum": [0, 1, 2] } }, { "name": "onBehalfOf", "type": "address", "required": true, "description": "Address for debt if interestRateMode != 0" }, { "name": "params", "type": "bytes", "required": true, "description": "Arbitrary bytes passed to receiver's executeOperation()" }, { "name": "referralCode", "type": "uint16", "required": false, "description": "Referral code. Use 0 for no referral.", "default": "0" } ], "constraints": { "min_amount": "1", "supported_tokens": "aave_arbitrum_listed_assets", "requires_position": false }, "approvals": [ { "type": "erc20_approve", "token": "assets", "spender": "pool", "amount": "exact_or_max" } ], "transaction_flow": [ { "step": 1, "action": "check_flash_loan_availability", "description": "Verify assets are available for flash loans on Arbitrum", "contract": "pool_data_provider", "method": "getFlashLoanEnabled(address)", "conditional": "always", "returns": ["flashLoanEnabled"] }, { "step": 2, "action": "check_receiver_contract", "description": "Verify receiver implements IFlashLoanReceiver", "contract": "receiverAddress", "method": "ADDRESSES_PROVIDER()", "conditional": "always", "returns": ["addressesProvider"] }, { "step": 3, "action": "approve_repayment", "description": "Receiver must approve Pool to pull back loaned amount + 0.05% fee inside executeOperation()", "contract": "assets", "method": "approve(address,uint256)", "conditional": "inside_receiver_contract" }, { "step": 4, "action": "execute", "description": "Execute the flash loan on Arbitrum. Reverts if not repaid.", "contract": "pool", "method": "flashLoan(address,address[],uint256[],uint256[],address,bytes,uint16)", "returns": ["success"] } ], "risk_warnings": [ "Flash loans require a smart contract receiver — cannot be called from an EOA", "Entire transaction reverts if loan + fee not repaid", "Flash loan fee is 0.05% of borrowed amount", "Arbitrum has deep Aave liquidity but verify available amounts for large flash loans" ] } ], "risk": { "audit_status": { "audited": true, "auditors": [ "Trail of Bits", "SigmaPrime", "ABDK Consulting", "Certora (formal verification)", "PeckShield", "OpenZeppelin" ], "last_audit_date": "2022-12-01", "audit_reports": [ "https://github.com/aave/aave-v3-core/tree/master/audits" ] }, "tvl": { "current_usd": 2800000000, "source": "defillama", "last_updated": "2026-03-07T00:00:00Z" }, "incidents": [ { "date": "2022-11-22", "severity": "medium", "title": "CRV market freeze (Ethereum only)", "description": "Aave governance froze CRV market on Ethereum. Arbitrum deployment was not directly affected. Demonstrates cross-chain governance coordination.", "resolved": true, "post_mortem": "https://governance.aave.com" }, { "date": "2023-06-07", "severity": "low", "title": "Arbitrum sequencer downtime considerations", "description": "Aave on Arbitrum uses a Chainlink L2 Sequencer Uptime Feed as a safeguard. During sequencer outages, liquidations are paused with a grace period after recovery to protect borrowers.", "resolved": true, "post_mortem": "https://docs.aave.com/developers/getting-started/v3-overview" } ], "risk_score": { "overall": "A", "smart_contract": "A+", "centralization": "B+", "oracle_dependence": "B+", "liquidity": "A" } }, "fees": { "model": "interest_rate", "tiers": [ { "name": "supply_yield", "fee_bps": null, "description": "Suppliers earn variable yield based on pool utilization on Arbitrum.", "conditions": "Earned on all supplied assets" }, { "name": "variable_borrow", "fee_bps": null, "description": "Variable borrow rate based on utilization curve. Typically 2-10% APY.", "conditions": "interestRateMode = 2" }, { "name": "stable_borrow", "fee_bps": null, "description": "Stable borrow rate — may not be available for all Arbitrum assets.", "conditions": "interestRateMode = 1 (limited availability)" }, { "name": "flash_loan_fee", "fee_bps": 5, "description": "0.05% flat fee on flash loan principal", "conditions": "Flash loan operations only" }, { "name": "reserve_factor", "fee_bps": null, "description": "Percentage of borrow interest going to Aave DAO treasury (typically 10-20%)", "conditions": "Applied automatically to all borrow interest" } ], "gas_estimates": { "supply": "180000", "withdraw": "190000", "borrow": "240000", "repay": "200000", "flash_loan": "400000", "approve": "46000" } } }