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.

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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

MarketBorrowable AssetCollateral Assets
USDCUSDCWETH, wstETH, cbETH, rETH
WETHWETHUSDC, USDT, USDS
USDTUSDTWETH, wstETH, USDC
USDSUSDSWETH, wstETH, USDC

​
Arbitrum

MarketBorrowable AssetCollateral Assets
USDC.eUSDC.eWETH, ARB
USDCUSDCWETH, ARB
USDTUSDTWETH, ARB

​
Base

MarketBorrowable AssetCollateral Assets
USDCUSDCWETH, cbETH
USDbCUSDbCWETH, cbETH
WETHWETHUSDC, USDbC
AEROAEROWETH, USDC

​
Polygon

MarketBorrowable AssetCollateral Assets
USDCUSDCWETH, WMATIC
USDTUSDTWETH, WMATIC

​
Optimism

MarketBorrowable AssetCollateral Assets
USDCUSDCWETH, OP
USDTUSDTWETH, OP
WETHWETHUSDC, USDT

​
Scroll

MarketBorrowable AssetCollateral Assets
USDCUSDCWETH

​
Mantle

MarketBorrowable AssetCollateral Assets
USDeUSDeWETH, 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.

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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

ContractAddress
Comet Proxy (cUSDCv3)0xc3d688B66703497DAA19211EEdff47f25384cdc3
Comet Implementation0x528c57A87706C31765001779168b42f24c694E1b
Comet Ext0x285617313887d43256F852cAE0Ee4de4b68D45B0
Configurator0x316f9708bB98af7dA9c68C1C3b5e79039cD336E3
Rewards0x1B0e765F6224C21223AeA2af16c1C46E38885a40
Bulker0x74a81F84268744a40FEBc48f8b812a1f188D80C3
USDC0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48
WETH0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2
wstETH0x7f39C581F595B53c5cb19bD0b3f8dA6c935E2Ca0

​
WETH Market

ContractAddress
Comet Proxy (cWETHv3)0xA17581A9E3356d9A858b789D68B4d866e593aE94
Comet Implementation0x1a7E64b593a9B8796e88a7489a2CEb6d079C850d
Comet Ext0xe2C1F54aFF6b38fD9DF7a69F22cB5fd3ba09F030
Configurator0x316f9708bB98af7dA9c68C1C3b5e79039cD336E3
Rewards0x1B0e765F6224C21223AeA2af16c1C46E38885a40
Bulker0xa397a8C2086C554B531c02E29f3291c9704B00c7
WETH0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2
wstETH0x7f39C581F595B53c5cb19bD0b3f8dA6c935E2Ca0

​
USDT Market

ContractAddress
Comet Proxy (cUSDTv3)0x3Afdc9BCA9213A35503b077a6072F3D0d5AB0840
Comet Implementation0x0b4a278345DEAA4c7c61FdD2eB4AEC97e412a0d4
Comet Ext0x5C58d4479A1E9b2d19EE052143FA73F0ee79A36e
Configurator0x316f9708bB98af7dA9c68C1C3b5e79039cD336E3
Rewards0x1B0e765F6224C21223AeA2af16c1C46E38885a40
Bulker0xa397a8C2086C554B531c02E29f3291c9704B00c7
USDT0xdAC17F958D2ee523a2206206994597C13D831ec7
WETH0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2

​
USDS Market

ContractAddress
Comet Proxy (cUSDSv3)0x5D409e56D886231aDAf00c8775665AD0f9897b56
Comet Implementation0xBC910e3659BDB03c133961760693DB9118C05B04
Comet Ext0x95DeDD64b551F05E9f59a101a519B024b6b116E7
Configurator0x316f9708bB98af7dA9c68C1C3b5e79039cD336E3
Rewards0x1B0e765F6224C21223AeA2af16c1C46E38885a40
Bulker0xa397a8C2086C554B531c02E29f3291c9704B00c7
USDS0xdC035D45d973E3EC169d2276DDab16f1e407384F
WETH0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2

​
Arbitrum

​
USDC.e Market

ContractAddress
Comet Proxy (cUSDCv3)0xA5EDBDD9646f8dFF606d7448e414884C7d905dCA
Comet Implementation0x9aB958D306Beb81711e5f5CA0731C1E4772dF9cb
Comet Ext0x1B2E88cC7365d90e7E81392432482925BD8437E9
Configurator0xb21b06D71c75973babdE35b49fFDAc3F82Ad3775
Rewards0x88730d254A2f7e6AC8388c3198aFd694bA9f7fae
Bulker0xbdE8F31D2DdDA895264e27DD990faB3DC87b372d
USDC.e0xFF970A61A04b1cA14834A43f5dE4533eBDDB5CC8
WETH0x82af49447d8a07e3bd95bd0d56f35241523fbab1
ARB0x912ce59144191c1204e64559fe8253a0e49e6548

​
USDC Market

ContractAddress
Comet Proxy (cUSDCv3)0x9c4ec768c28520B50860ea7a15bd7213a9fF58bf
Comet Implementation0xF25212E676D1F7F89Cd72fFEe66158f541246445
Comet Ext0x1B2E88cC7365d90e7E81392432482925BD8437E9
Configurator0xb21b06D71c75973babdE35b49fFDAc3F82Ad3775
Rewards0x88730d254A2f7e6AC8388c3198aFd694bA9f7fae
Bulker0xbdE8F31D2DdDA895264e27DD990faB3DC87b372d
USDC0xaf88d065e77c8cC2239327C5EDb3A432268e5831
WETH0x82af49447d8a07e3bd95bd0d56f35241523fbab1
ARB0x912ce59144191c1204e64559fe8253a0e49e6548

​
WETH Market

ContractAddress
Comet Proxy (cWETHv3)0x6f7D514bbD4aFf3BcD1140B7344b32f063dEe486
Comet Implementation0x8df378453ff9deffa513367cdf9b3b53726303e9
Comet Ext0x5404872d8f2e24b230EC9B9eC64E3855F637FB93
Configurator0xb21b06D71c75973babdE35b49fFDAc3F82Ad3775
Rewards0x88730d254A2f7e6AC8388c3198aFd694bA9f7fae
Bulker0xbdE8F31D2DdDA895264e27DD990faB3DC87b372d
WETH0x82aF49447D8a07e3bd95BD0d56f35241523fBab1
USDC0xaf88d065e77c8cC2239327C5EDb3A432268e5831
USDT0xFd086bC7CD5C481DCC9C85ebE478A1C0b69FCbb9

​
Base

​
USDC Market

ContractAddress
Comet Proxy (cUSDCv3)0xb125E6687d4313864e53df431d5425969c15Eb2F
Comet Implementation0x23684254bc5077c79F166E77D22F516f86d8023a
Comet Ext0x3bac64185786922292266AA92a58cf870D694E2a
Configurator0x45939657d1CA34A8FA39A924B71D28Fe8431e581
Rewards0x123964802e6ABabBE1Bc9547D72Ef1B69B00A6b1
Bulker0x78D0677032A35c63D142a48A2037048871212a8C
USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
WETH0x4200000000000000000000000000000000000006
cbETH0x2Ae3F1Ec7F1F5012CFEab0185bfc7aa3cf0DEc22

​
USDbC Market

ContractAddress
Comet Proxy (cUSDbCv3)0x9c4ec768c28520B50860ea7a15bd7213a9fF58bf
Comet Implementation0x3Ab91391221204372DC9FE5E3D4516d03988E8B8
Comet Ext0x2F9E3953b2Ef89fA265f2a32ed9F80D00229125B
Configurator0x45939657d1CA34A8FA39A924B71D28Fe8431e581
Rewards0x123964802e6ABabBE1Bc9547D72Ef1B69B00A6b1
Bulker0x78D0677032A35c63D142a48A2037048871212a8C
USDbC0xd9aAEc86B65D86f6A7B5B1b0c42FFA531710b6CA
WETH0x4200000000000000000000000000000000000006
cbETH0x2Ae3F1Ec7F1F5012CFEab0185bfc7aa3cf0DEc22

​
WETH Market

ContractAddress
Comet Proxy (cWETHv3)0x46e6b214b524310239732D51387075E0e70970bf
Comet Implementation0x1f9d71Ef69f502188eC65ceBAc049fe646B74De4
Comet Ext0x88bB8C109640778D3fB1074bB10a66e31F2c9c17
Configurator0x45939657d1CA34A8FA39A924B71D28Fe8431e581
Rewards0x123964802e6ABabBE1Bc9547D72Ef1B69B00A6b1
Bulker0x78D0677032A35c63D142a48A2037048871212a8C
WETH0x4200000000000000000000000000000000000006
USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
USDbC0xd9aAEc86B65D86f6A7B5B1b0c42FFA531710b6CA

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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.