Contract Addresses

Complete reference of all FEY Protocol contracts deployed on Base Mainnet.

Base Mainnet (Chain ID: 8453)

Core Contracts

Contract	Address	Description
Factory (Fey.sol)	`0x8EEF0dC80ADf57908bB1be0236c2a72a7e379C2d`	Main factory for token deployments
FEY Token	`0xD09cf0982A32DD6856e12d6BF2F08A822eA5D91D`	Native protocol token (100B supply)
Hook (FeyHookStaticFeeV2)	`0x5B409184204b86f708d3aeBb3cad3F02835f68cC`	Uniswap V4 hook for fee management

Supporting Infrastructure

Contract	Address	Description
LP Locker (FeyLpLockerMultiple)	`0x975aF6a738f502935AFE64633Ad3EA2A3eb3e7Fa`	Manages LP positions and rewards
Fee Locker (FeyFeeLocker)	`0xf739FC4094F3Df0a1Be08E2925b609F3C3Aa13c6`	Stores and distributes protocol fees
Pool Extension Allowlist	`0xFD549237CdEAbDc14438CAF3f3861e174fDEae46`	Controls approved pool extensions

Extensions

Extension	Address	Purpose
FeyUniv4EthDevBuy	`0x173077c319c38bb08D4C4968014357fd518446b4`	ETH-based token purchases during deployment

MEV Protection

Contract	Address	Description
FeyMevNoop	`0x2ebc0fA629b268dFA3d455b67027d507a562EAC0`	No-op MEV module (template)

Key Addresses

Role	Address	Purpose
Team Fee Recipient	`0x72f5565Ab147105614ca4Eb83ecF15f751Fd8C50`	Receives protocol fees for distribution

Pool Information

Main Pool (FEY/WETH)

Property	Value
Pool ID	`0xe155c517c53f078f4b443c99436e42c1b80fd2fb1b3508f431c46b8365e4f3f0`
Currency0	WETH (`0x4200000000000000000000000000000000000006`)
Currency1	FEY (`0xD09cf0982A32DD6856e12d6BF2F08A822eA5D91D`)
Fee Flag	Dynamic (0x800000)
Tick Spacing	200
Hook	FeyHookStaticFeeV2 (`0x5B409184204b86f708d3aeBb3cad3F02835f68cC`)

External Dependencies

Uniswap V4

Contract	Address	Description
Pool Manager	TBD	Uniswap V4 core pool manager
Position Manager	TBD	Uniswap V4 position manager

Permit2

Contract	Address	Description
Permit2	`0x000000000022D473030F116dDEE9F6B43aC78BA3`	Universal approval interface

Base Infrastructure

Contract	Address	Description
WETH	`0x4200000000000000000000000000000000000006`	Wrapped ETH on Base
Superchain Token Bridge	`0x4200000000000000000000000000000000000010`	Cross-chain token bridge

Network Details

Base Mainnet

Property	Value
Chain ID	8453
RPC URL	`https://mainnet.base.org`
Explorer	BaseScan
Native Token	ETH
Bridge	Base Bridge

Contract Verification

All contracts are verified on BaseScan with source code available:

Factory

Address: 0x8EEF0dC80ADf57908bB1be0236c2a72a7e379C2d
Verification: View on BaseScan →

FEY Token

Address: 0xD09cf0982A32DD6856e12d6BF2F08A822eA5D91D
Verification: View on BaseScan →

Hook

Address: 0x5B409184204b86f708d3aeBb3cad3F02835f68cC
Verification: View on BaseScan →

Integration Examples

Web3 Configuration

// Base mainnet configuration
const baseConfig = {
  chainId: 8453,
  name: 'Base Mainnet',
  rpcUrl: 'https://mainnet.base.org',
  blockExplorer: 'https://basescan.org',
  contracts: {
    factory: '0x8EEF0dC80ADf57908bB1be0236c2a72a7e379C2d',
    feyToken: '0xD09cf0982A32DD6856e12d6BF2F08A822eA5D91D',
    hook: '0x5B409184204b86f708d3aeBb3cad3F02835f68cC',
    feeLocker: '0xf739FC4094F3Df0a1Be08E2925b609F3C3Aa13c6',
    lpLocker: '0x975aF6a738f502935AFE64633Ad3EA2A3eb3e7Fa',
  }
};

Contract Instances

import { ethers } from 'ethers';
 
// Provider setup
const provider = new ethers.JsonRpcProvider('https://mainnet.base.org');
 
// Contract instances
const factory = new ethers.Contract(
  '0x8EEF0dC80ADf57908bB1be0236c2a72a7e379C2d',
  factoryABI,
  provider
);
 
const feyToken = new ethers.Contract(
  '0xD09cf0982A32DD6856e12d6BF2F08A822eA5D91D',
  erc20ABI,
  provider
);
 
const hook = new ethers.Contract(
  '0x5B409184204b86f708d3aeBb3cad3F02835f68cC',
  hookABI,
  provider
);

Environment Variables

# Base mainnet configuration
export CHAIN_ID=8453
export RPC_URL="https://mainnet.base.org"
export FACTORY_ADDRESS="0x8EEF0dC80ADf57908bB1be0236c2a72a7e379C2d"
export FEY_TOKEN_ADDRESS="0xD09cf0982A32DD6856e12d6BF2F08A822eA5D91D"
export HOOK_ADDRESS="0x5B409184204b86f708d3aeBb3cad3F02835f68cC"
export FEE_LOCKER_ADDRESS="0xf739FC4094F3Df0a1Be08E2925b609F3C3Aa13c6"
export LP_LOCKER_ADDRESS="0x975aF6a738f502935AFE64633Ad3EA2A3eb3e7Fa"

Cast Commands

# Set environment for easier commands
export RPC="https://mainnet.base.org"
export FACTORY="0x8EEF0dC80ADf57908bB1be0236c2a72a7e379C2d"
export FEY="0xD09cf0982A32DD6856e12d6BF2F08A822eA5D91D"
 
# Quick status checks
cast call $FACTORY "deprecated()(bool)" --rpc-url $RPC
cast call $FEY "totalSupply()(uint256)" --rpc-url $RPC

Security Notes

Contract Immutability

Immutable Contracts:

Factory core logic (deployment functions)
Token contracts (ERC20 functionality)
Hook swap logic (fee collection)

Upgradeable Components:

System configuration (admin functions)
Module enablement (hooks, lockers, extensions)
Fee routing (can be frozen)

Admin Controls

Factory Owner:

Enable/disable system modules
Set system-wide configuration
Freeze critical parameters

Token Admins:

Update token metadata
Transfer admin role
Verify token authenticity

Access Patterns

Public Functions:

Token deployment (deployToken)
Fee claiming (claimWethFees, claimBaseTokenFees)
Reward collection (collectRewards)

Permissioned Functions:

System configuration (owner/admin only)
Module management (owner/admin only)
Critical parameter changes (owner only)