Supported Networks

Contract Addresses

All contracts are deployed deterministically with CREATE2 and share the same addresses across supported networks:

FlashLoanRouter:
AaveBorrower:
ERC3156Borrower:

These addresses are identical across all supported networks due to CREATE2 deterministic deployment.

See CIP 66 for details.

The contracts are currently deployed on the following networks:

Ethereum

Mainnet (Chain ID: 1)
Sepolia (Chain ID: 11155111)

Contract	Address	Transaction
FlashLoanRouter	`0x9da8b48441583a2b93e2ef8213aad0ec0b392c69`	View on Etherscan
AaveBorrower	`0x7d9C4DeE56933151Bc5C909cfe09DEf0d315CB4A`	View on Etherscan
ERC3156Borrower	`0x47d71b4b3336ab2729436186c216955f3c27cd04`	View on Etherscan

Contract	Address	Transaction
FlashLoanRouter	`0x9da8B48441583a2b93e2eF8213aAD0EC0b392C69`	View on Etherscan
AaveBorrower	`0x7d9C4DeE56933151Bc5C909cfe09DEf0d315CB4A`	View on Etherscan
ERC3156Borrower	`0x47d71b4b3336ab2729436186c216955f3c27cd04`	View on Etherscan

Layer 2 Networks

Arbitrum One (Chain ID: 42161)
Optimism (Chain ID: 10)
Base (Chain ID: 8453)
Linea (Chain ID: 59144)

Contract	Address	Transaction
FlashLoanRouter	`0x9da8b48441583a2b93e2ef8213aad0ec0b392c69`	View on Arbiscan
AaveBorrower	`0x7d9C4DeE56933151Bc5C909cfe09DEf0d315CB4A`	View on Arbiscan
ERC3156Borrower	`0x47d71b4b3336ab2729436186c216955f3c27cd04`	View on Arbiscan

Contract	Address	Transaction
FlashLoanRouter	`0x9da8b48441583a2b93e2ef8213aad0ec0b392c69`	View on Optimistic Etherscan
AaveBorrower	`0x7d9c4dee56933151bc5c909cfe09def0d315cb4a`	View on Optimistic Etherscan
ERC3156Borrower	`0x47d71b4b3336ab2729436186c216955f3c27cd04`	View on Optimistic Etherscan

Contract	Address	Transaction
FlashLoanRouter	`0x9da8b48441583a2b93e2ef8213aad0ec0b392c69`	View on Basescan
AaveBorrower	`0x7d9C4DeE56933151Bc5C909cfe09DEf0d315CB4A`	View on Basescan
ERC3156Borrower	`0x47d71b4b3336ab2729436186c216955f3c27cd04`	View on Basescan

Contract	Address	Transaction
FlashLoanRouter	`0x9da8b48441583a2b93e2ef8213aad0ec0b392c69`	View on Lineascan
AaveBorrower	`0x7d9c4dee56933151bc5c909cfe09def0d315cb4a`	View on Lineascan
ERC3156Borrower	`0x47d71b4b3336ab2729436186c216955f3c27cd04`	View on Lineascan

EVM-Compatible Chains

Contract	Address	Transaction
FlashLoanRouter	`0x9da8b48441583a2b93e2ef8213aad0ec0b392c69`	View on Polygonscan
AaveBorrower	`0x7d9c4dee56933151bc5c909cfe09def0d315cb4a`	View on Polygonscan
ERC3156Borrower	`0x47d71b4b3336ab2729436186c216955f3c27cd04`	View on Polygonscan

Contract	Address	Transaction
FlashLoanRouter	`0x9da8b48441583a2b93e2ef8213aad0ec0b392c69`	View on Gnosisscan
AaveBorrower	`0x7d9C4DeE56933151Bc5C909cfe09DEf0d315CB4A`	View on Gnosisscan
ERC3156Borrower	`0x47d71b4b3336ab2729436186c216955f3c27cd04`	View on Gnosisscan

Contract	Address	Transaction
FlashLoanRouter	`0x9da8b48441583a2b93e2ef8213aad0ec0b392c69`	View on BscScan
AaveBorrower	`0x7d9c4dee56933151bc5c909cfe09def0d315cb4a`	View on BscScan
ERC3156Borrower	`0x47d71b4b3336ab2729436186c216955f3c27cd04`	View on BscScan

Contract	Address	Transaction
FlashLoanRouter	`0x9da8b48441583a2b93e2ef8213aad0ec0b392c69`	View on Snowtrace
AaveBorrower	`0x7d9c4dee56933151bc5c909cfe09def0d315cb4a`	View on Snowtrace
ERC3156Borrower	`0x47d71b4b3336ab2729436186c216955f3c27cd04`	View on Snowtrace

Contract	Address	Transaction
FlashLoanRouter	`0x9da8b48441583a2b93e2ef8213aad0ec0b392c69`	View Transaction
AaveBorrower	`0x7d9c4dee56933151bc5c909cfe09def0d315cb4a`	View Transaction
ERC3156Borrower	`0x47d71b4b3336ab2729436186c216955f3c27cd04`	View Transaction

Contract	Address	Transaction
FlashLoanRouter	`0x9da8b48441583a2b93e2ef8213aad0ec0b392c69`	View Transaction
AaveBorrower	`0x7d9c4dee56933151bc5c909cfe09def0d315cb4a`	View Transaction
ERC3156Borrower	`0x47d71b4b3336ab2729436186c216955f3c27cd04`	View Transaction

Network Summary

The Flash Loan Router is deployed on 12 networks:

Mainnet: Ethereum, Gnosis Chain
Testnet: Sepolia
Layer 2: Arbitrum One, Optimism, Base, Linea
Sidechains: Polygon, BNB Smart Chain, Avalanche C-Chain, MODE, RSK Mainnet

Adding New Networks

To deploy contracts on a new network, follow the Deployment Guide. The CREATE2 deployment ensures contracts will have the same addresses as existing networks.

Requirements for New Networks

Network compatibility

The network must be EVM-compatible and support:

Solidity 0.8.28
Cancun EVM version
CREATE2 opcode

CoW Protocol deployment

CoW Protocol Settlement contract must be deployed at: 0x9008D19f58AAbD9eD0D60971565AA8510560ab41

Flash loan providers

At least one supported flash loan provider should be available:

Aave (for AaveBorrower)
ERC-3156 compliant lenders like Maker (for ERC3156Borrower)

Verifying Deployments

To verify a contract deployment on any network:

Check the contract address matches the expected deterministic address
View the deployment transaction on the network’s block explorer
Verify the contract source code (see Contract Verification)
Confirm the constructor arguments match expected values

All deployment information is tracked in the networks.json file in the repository root.

Network Resources

Deployment Guide

Deploy contracts to new networks

Contract Verification

Verify contracts on block explorers

Router Design

Understand how to integrate Flash Loan Router

CIP 66 Proposal

Read the governance proposal

Contracts

Hooks Trampoline

Composable CoW

Contracts SDK

Flash Loan Router

Supported Networks

Contract Addresses