How to Connect MetaMask to Compound? Lending Setup Tutorial

MetaMask Wallet Configuration

1. Install the MetaMask browser extension on Chrome, Brave, or Edge from the official website.

2. Create a new wallet or import an existing one using a 12-word recovery phrase.

3. Ensure the network is set to Ethereum Mainnet or a supported chain like Base or Polygon, depending on intended Compound usage.

4. Verify that the “Privacy Mode” setting is disabled in MetaMask Advanced Settings to allow seamless dApp connection.

5. Confirm that the “Allow custom chain” experimental feature is enabled if connecting to non-standard chains such as MapleChain or other Compound-deployed networks.

Compound Protocol Access

1. Navigate to compound.finance or the official Compound V3 interface at app.compound.xyz.

2. Click “Connect Wallet” and select MetaMask from the available options.

3. Approve the connection request in the MetaMask popup window without signing any transaction.

4. Once connected, the interface displays real-time balances, supply APYs, borrow rates, and health factor for eligible assets.

5. Users must hold sufficient ETH or native gas token on the selected network to cover interaction fees during subsequent actions.

Asset Supply Workflow

1. Choose an asset from the supported list—USDC, DAI, WBTC, ETH, or others active on the selected chain.

2. Click “Supply” next to the desired token and enter the amount to deposit.

3. Review the transaction preview: confirm interest accrual starts immediately upon confirmation.

4. Approve the token allowance if this is the first time supplying that asset—this requires a separate signed transaction.

5. Submit the supply transaction; once mined, cTokens (V2) or direct balance updates (V3) appear in the dashboard.

Borrowing Mechanics

1. Deposit collateral first—only assets with an active collateral factor can be used for borrowing.

2. Check the Health Factor value; it must remain above 1.0 to avoid liquidation risk.

3. Select a borrowable asset—Compound V3 restricts borrowing to a single base asset per market, typically USDC.

4. Enter the desired borrow amount and review the dynamic interest rate shown in real time.

5. Confirm the borrow transaction; funds arrive instantly in the connected wallet after block confirmation.

Liquidation Risk Management

1. Monitor price feeds through integrated oracles—no manual refresh required but external volatility may lag slightly.

2. Understand the closeFactor parameter: during liquidation, only up to 50% of outstanding debt may be repaid per operation.

3. Recognize the liquidation incentive—typically 5–10% bonus paid to liquidators from the borrower’s collateral.

4. Observe the collateral exchange rate drift: cToken redemption value depends on underlying reserve growth and protocol accrual logic.

5. Avoid full utilization of borrowing power—even at HF=1.1, minor price movement can trigger margin calls.

Frequently Asked Questions

Q: Why does MetaMask show “Provider Error” when connecting to Compound?A: This usually indicates RPC node failure. Switch to a stable custom RPC such as https://rpc.ankr.com/eth or Infura endpoint with valid API key. Clear site data in browser developer tools if persistent.

Q: Can I supply assets on Ethereum and borrow on Base using the same MetaMask account?A: No. Compound markets are chain-isolated. Supply and borrow actions must occur within the same deployed instance—Ethereum, Base, or Polygon each operate independent liquidity pools.

Q: What happens to my cTokens if I switch from Compound V2 to V3?A: cTokens have no utility in V3. Users must redeem them fully on V2 before migrating deposits to the V3 interface. No automatic migration path exists.

Q: Is COMP token distribution still active on all markets?A: Yes. COMP rewards continue across all active markets on supported chains, distributed per-block based on supplied and borrowed asset balances.