Installation

Prerequisites

Foundry installed
A CoW Protocol settlement contract address for deployment

Clone the repository

git clone https://github.com/cowprotocol/hooks-trampoline.git
cd hooks-trampoline

Install dependencies

forge install

Compile contracts

forge build

Compilation uses Solidity 0.8.20, EVM Shanghai, with optimizer enabled at 1,000,000 runs.

Run tests

forge test

Deployment

Forge Script

The constructor accepts one parameter: the settlement contract address.

forge create src/HooksTrampoline.sol:HooksTrampoline \
  --constructor-args <SETTLEMENT_ADDRESS> \
  --rpc-url <YOUR_RPC_URL> \
  --private-key <YOUR_PRIVATE_KEY>

To verify on Etherscan, add --etherscan-api-key and --verify flags.

Cannon

Cannon provides predictable addresses and multi-chain support through configuration files. The system automatically retrieves settlement addresses from the cow-settlement package, reducing manual configuration.

yarn install
yarn build:cannon
yarn cannon:publish

Publishing requires 0.0025 ETH + gas fees on Optimism Mainnet.

Verification

After deployment, verify the contract using cast to check the settlement address:

cast call <TRAMPOLINE_ADDRESS> "settlement()" --rpc-url <YOUR_RPC_URL>

Or verify on Etherscan with constructor argument encoding.

Resources

Production addresses are available at the cowprotocol/deployments repository
Next step: Review the Usage Guide for integration details

Contracts

Hooks Trampoline

Composable CoW

Contracts SDK

Flash Loan Router

Installation

Prerequisites

Installation

Deployment

Forge Script

Cannon

Verification

Resources

​Prerequisites

​Installation

​Deployment

​Forge Script

​Cannon

​Verification

​Resources

Prerequisites

Installation

Deployment

Forge Script

Cannon

Verification

Resources