Gate402 Smart Contracts

Smart contracts for the Gate402 platform, including the GAToken (G402) ERC20 token with EIP-3009 support for gasless transfers.

Overview

GAToken is an ERC20 token with the following features:

• ERC20: Standard fungible token functionality
• EIP-3009: Transfer with authorization (gasless transfers via meta-transactions)
• ERC20Permit: Gasless approvals via EIP-2612
• ERC20Burnable: Token holders can burn their tokens
• Access Control: Role-based minting with MINTER_ROLE

Token details:

• Name: Gate402
• Symbol: G402
• Deployment: Deterministic addresses via Create2Deployer

Installation

Install dependencies using Foundry:

forge install

Configuration

Create a .env file with the following variables:

# Required
PRIVATE_KEY=<your_private_key>
CREATE2_DEPLOYER=<create2_deployer_address>
SALT=<deployment_salt>

# Optional (defaults to deployer address)
ADMIN_ADDRESS=<admin_address>

Deployment

Deploy GAToken using the deployment script:

forge script script/DeployGAToken.s.sol:DeployGAToken \
  --rpc-url <rpc_url> \
  --broadcast \
  --verify

Example for Mantle Sepolia:

forge script script/DeployGAToken.s.sol:DeployGAToken \
  --rpc-url https://rpc.sepolia.mantle.xyz \
  --broadcast \
  --verify

Development

Build

forge build

Test

forge test

Format

forge fmt

Gas Snapshots

forge snapshot

Documentation

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