Networks and Markets

Supported networks and markets in Compound III

Compound III is deployed across multiple networks and markets. This page provides an overview of the supported networks and markets, along with their specific configurations and contract addresses.

Supported Networks

Compound III is deployed on the following networks:

• Ethereum Mainnet
• Arbitrum
• Base
• Polygon
• Optimism
• Scroll
• Mantle
• Testnets: Sepolia, Mumbai, Base Sepolia

Markets by Network

Each network has one or more markets, each with a single borrowable asset and multiple collateral assets.

Ethereum Mainnet

Market	Borrowable Asset	Collateral Assets
USDC	USDC	WETH, wstETH, cbETH, rETH
WETH	WETH	USDC, USDT, USDS
USDT	USDT	WETH, wstETH, USDC
USDS	USDS	WETH, wstETH, USDC

Arbitrum

Market	Borrowable Asset	Collateral Assets
USDC.e	USDC.e	WETH, ARB
USDC	USDC	WETH, ARB
USDT	USDT	WETH, ARB

Base

Market	Borrowable Asset	Collateral Assets
USDC	USDC	WETH, cbETH
USDbC	USDbC	WETH, cbETH
WETH	WETH	USDC, USDbC
AERO	AERO	WETH, USDC

Polygon

Market	Borrowable Asset	Collateral Assets
USDC	USDC	WETH, WMATIC
USDT	USDT	WETH, WMATIC

Optimism

Market	Borrowable Asset	Collateral Assets
USDC	USDC	WETH, OP
USDT	USDT	WETH, OP
WETH	WETH	USDC, USDT

Scroll

Market	Borrowable Asset	Collateral Assets
USDC	USDC	WETH

Mantle

Market	Borrowable Asset	Collateral Assets
USDe	USDe	WETH, MNT

Using Networks and Markets in Compound React

When using Compound React, you can specify which network and market to connect to by passing the appropriate props to the CompoundProvider:

import { CompoundProvider } from 'compound-react';
import { providers } from 'ethers';

function App() {
  const provider = new providers.Web3Provider(window.ethereum);
  
  return (
    <CompoundProvider 
      provider={provider}
      network="base"  // Connect to Base network
      market="usdc"   // Connect to the USDC market
    >
      <YourApp />
    </CompoundProvider>
  );
}

Getting Network and Market Information

You can use the useNetworkInfo and useMarketInfo hooks to get information about the current network and market:

import { useNetworkInfo, useMarketInfo } from 'compound-react';

function NetworkAndMarketInfo() {
  const { data: networkInfo } = useNetworkInfo();
  const { data: marketInfo } = useMarketInfo();
  
  return (
    <div>
      <h2>Network Information</h2>
      <p>Network: {networkInfo.name}</p>
      <p>Chain ID: {networkInfo.chainId}</p>
      
      <h2>Market Information</h2>
      <p>Market: {marketInfo.name}</p>
      <p>Base Asset: {marketInfo.baseAsset}</p>
      <p>Collateral Assets: {marketInfo.collateralAssets.join(', ')}</p>
    </div>
  );
}

Switching Networks and Markets

You can switch networks and markets by updating the props passed to the CompoundProvider:

import { useState } from 'react';
import { CompoundProvider } from 'compound-react';
import { providers } from 'ethers';

function App() {
  const [network, setNetwork] = useState('ethereum');
  const [market, setMarket] = useState('usdc');
  const provider = new providers.Web3Provider(window.ethereum);
  
  return (
    <div>
      <div>
        <label>
          Network:
          <select value={network} onChange={(e) => setNetwork(e.target.value)}>
            <option value="ethereum">Ethereum</option>
            <option value="arbitrum">Arbitrum</option>
            <option value="base">Base</option>
            <option value="polygon">Polygon</option>
            <option value="optimism">Optimism</option>
            <option value="scroll">Scroll</option>
            <option value="mantle">Mantle</option>
          </select>
        </label>
        
        <label>
          Market:
          <select value={market} onChange={(e) => setMarket(e.target.value)}>
            <option value="usdc">USDC</option>
            <option value="usdt">USDT</option>
            <option value="weth">WETH</option>
            {/* Add more options based on the selected network */}
          </select>
        </label>
      </div>
      
      <CompoundProvider 
        provider={provider}
        network={network}
        market={market}
      >
        <YourApp />
      </CompoundProvider>
    </div>
  );
}

Contract Addresses

The following tables provide the contract addresses for each market on each network. The Comet proxy address is the main contract address you’ll use to interact with a Compound III market.

Important: The Comet proxy addresses (e.g., cUSDCv3, cWETHv3) are fixed and will not change, even if the implementation contracts are upgraded in the future. Always use the proxy address when interacting with Compound III markets.

Contract Types

• Comet Proxy: The main entry point for interacting with a Compound III market. This address is fixed and won’t change even if the implementation is upgraded.
• Comet Implementation: The actual implementation of the market logic. Don’t interact with this directly; use the Comet Proxy instead.
• Comet Ext: An extension contract that provides additional functionality for the market.
• Configurator: Used to set and update parameters of the Comet proxy contract.
• Rewards: Holds reward tokens (e.g., COMP) and allows users to claim rewards.
• Bulker: Allows users to batch multiple operations into a single transaction (e.g., supply multiple assets, borrow, etc.).

Ethereum Mainnet

USDC Market

Contract	Address
Comet Proxy (cUSDCv3)	0xc3d688B66703497DAA19211EEdff47f25384cdc3
Comet Implementation	0x528c57A87706C31765001779168b42f24c694E1b
Comet Ext	0x285617313887d43256F852cAE0Ee4de4b68D45B0
Configurator	0x316f9708bB98af7dA9c68C1C3b5e79039cD336E3
Rewards	0x1B0e765F6224C21223AeA2af16c1C46E38885a40
Bulker	0x74a81F84268744a40FEBc48f8b812a1f188D80C3
USDC	0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48
WETH	0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2
wstETH	0x7f39C581F595B53c5cb19bD0b3f8dA6c935E2Ca0

WETH Market

Contract	Address
Comet Proxy (cWETHv3)	0xA17581A9E3356d9A858b789D68B4d866e593aE94
Comet Implementation	0x1a7E64b593a9B8796e88a7489a2CEb6d079C850d
Comet Ext	0xe2C1F54aFF6b38fD9DF7a69F22cB5fd3ba09F030
Configurator	0x316f9708bB98af7dA9c68C1C3b5e79039cD336E3
Rewards	0x1B0e765F6224C21223AeA2af16c1C46E38885a40
Bulker	0xa397a8C2086C554B531c02E29f3291c9704B00c7
WETH	0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2
wstETH	0x7f39C581F595B53c5cb19bD0b3f8dA6c935E2Ca0

USDT Market

Contract	Address
Comet Proxy (cUSDTv3)	0x3Afdc9BCA9213A35503b077a6072F3D0d5AB0840
Comet Implementation	0x0b4a278345DEAA4c7c61FdD2eB4AEC97e412a0d4
Comet Ext	0x5C58d4479A1E9b2d19EE052143FA73F0ee79A36e
Configurator	0x316f9708bB98af7dA9c68C1C3b5e79039cD336E3
Rewards	0x1B0e765F6224C21223AeA2af16c1C46E38885a40
Bulker	0xa397a8C2086C554B531c02E29f3291c9704B00c7
USDT	0xdAC17F958D2ee523a2206206994597C13D831ec7
WETH	0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2

USDS Market

Contract	Address
Comet Proxy (cUSDSv3)	0x5D409e56D886231aDAf00c8775665AD0f9897b56
Comet Implementation	0xBC910e3659BDB03c133961760693DB9118C05B04
Comet Ext	0x95DeDD64b551F05E9f59a101a519B024b6b116E7
Configurator	0x316f9708bB98af7dA9c68C1C3b5e79039cD336E3
Rewards	0x1B0e765F6224C21223AeA2af16c1C46E38885a40
Bulker	0xa397a8C2086C554B531c02E29f3291c9704B00c7
USDS	0xdC035D45d973E3EC169d2276DDab16f1e407384F
WETH	0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2

Arbitrum

USDC.e Market

Contract	Address
Comet Proxy (cUSDCv3)	0xA5EDBDD9646f8dFF606d7448e414884C7d905dCA
Comet Implementation	0x9aB958D306Beb81711e5f5CA0731C1E4772dF9cb
Comet Ext	0x1B2E88cC7365d90e7E81392432482925BD8437E9
Configurator	0xb21b06D71c75973babdE35b49fFDAc3F82Ad3775
Rewards	0x88730d254A2f7e6AC8388c3198aFd694bA9f7fae
Bulker	0xbdE8F31D2DdDA895264e27DD990faB3DC87b372d
USDC.e	0xFF970A61A04b1cA14834A43f5dE4533eBDDB5CC8
WETH	0x82af49447d8a07e3bd95bd0d56f35241523fbab1
ARB	0x912ce59144191c1204e64559fe8253a0e49e6548

USDC Market

Contract	Address
Comet Proxy (cUSDCv3)	0x9c4ec768c28520B50860ea7a15bd7213a9fF58bf
Comet Implementation	0xF25212E676D1F7F89Cd72fFEe66158f541246445
Comet Ext	0x1B2E88cC7365d90e7E81392432482925BD8437E9
Configurator	0xb21b06D71c75973babdE35b49fFDAc3F82Ad3775
Rewards	0x88730d254A2f7e6AC8388c3198aFd694bA9f7fae
Bulker	0xbdE8F31D2DdDA895264e27DD990faB3DC87b372d
USDC	0xaf88d065e77c8cC2239327C5EDb3A432268e5831
WETH	0x82af49447d8a07e3bd95bd0d56f35241523fbab1
ARB	0x912ce59144191c1204e64559fe8253a0e49e6548

WETH Market

Contract	Address
Comet Proxy (cWETHv3)	0x6f7D514bbD4aFf3BcD1140B7344b32f063dEe486
Comet Implementation	0x8df378453ff9deffa513367cdf9b3b53726303e9
Comet Ext	0x5404872d8f2e24b230EC9B9eC64E3855F637FB93
Configurator	0xb21b06D71c75973babdE35b49fFDAc3F82Ad3775
Rewards	0x88730d254A2f7e6AC8388c3198aFd694bA9f7fae
Bulker	0xbdE8F31D2DdDA895264e27DD990faB3DC87b372d
WETH	0x82aF49447D8a07e3bd95BD0d56f35241523fBab1
USDC	0xaf88d065e77c8cC2239327C5EDb3A432268e5831
USDT	0xFd086bC7CD5C481DCC9C85ebE478A1C0b69FCbb9

Base

USDC Market

Contract	Address
Comet Proxy (cUSDCv3)	0xb125E6687d4313864e53df431d5425969c15Eb2F
Comet Implementation	0x23684254bc5077c79F166E77D22F516f86d8023a
Comet Ext	0x3bac64185786922292266AA92a58cf870D694E2a
Configurator	0x45939657d1CA34A8FA39A924B71D28Fe8431e581
Rewards	0x123964802e6ABabBE1Bc9547D72Ef1B69B00A6b1
Bulker	0x78D0677032A35c63D142a48A2037048871212a8C
USDC	0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
WETH	0x4200000000000000000000000000000000000006
cbETH	0x2Ae3F1Ec7F1F5012CFEab0185bfc7aa3cf0DEc22

USDbC Market

Contract	Address
Comet Proxy (cUSDbCv3)	0x9c4ec768c28520B50860ea7a15bd7213a9fF58bf
Comet Implementation	0x3Ab91391221204372DC9FE5E3D4516d03988E8B8
Comet Ext	0x2F9E3953b2Ef89fA265f2a32ed9F80D00229125B
Configurator	0x45939657d1CA34A8FA39A924B71D28Fe8431e581
Rewards	0x123964802e6ABabBE1Bc9547D72Ef1B69B00A6b1
Bulker	0x78D0677032A35c63D142a48A2037048871212a8C
USDbC	0xd9aAEc86B65D86f6A7B5B1b0c42FFA531710b6CA
WETH	0x4200000000000000000000000000000000000006
cbETH	0x2Ae3F1Ec7F1F5012CFEab0185bfc7aa3cf0DEc22

WETH Market

Contract	Address
Comet Proxy (cWETHv3)	0x46e6b214b524310239732D51387075E0e70970bf
Comet Implementation	0x1f9d71Ef69f502188eC65ceBAc049fe646B74De4
Comet Ext	0x88bB8C109640778D3fB1074bB10a66e31F2c9c17
Configurator	0x45939657d1CA34A8FA39A924B71D28Fe8431e581
Rewards	0x123964802e6ABabBE1Bc9547D72Ef1B69B00A6b1
Bulker	0x78D0677032A35c63D142a48A2037048871212a8C
WETH	0x4200000000000000000000000000000000000006
USDC	0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
USDbC	0xd9aAEc86B65D86f6A7B5B1b0c42FFA531710b6CA

Next Steps

Now that you understand the networks and markets supported by Compound III, you can explore the Hooks section to learn how to interact with these markets using Compound React.