How to configure MetaMask for Monad testnet? (Early Access)

Adding Monad Testnet to MetaMask

1. Open MetaMask and click the network selector dropdown located in the top-left corner of the interface.

2. Select “Add Network” and then choose “Add a network manually” from the options presented.

3. Enter the following parameters: Network Name: Monad Testnet, New RPC URL: https://testnet-rpc.monad.xyz, Chain ID: 11111, Currency Symbol: MON, Block Explorer URL: https://explorer.testnet.monad.xyz.

4. Confirm the addition by clicking “Save”. The network will now appear in your MetaMask network list and be selectable at any time.

Acquiring Testnet MON Tokens

1. Navigate to the official Monad testnet faucet at https://faucet.testnet.monad.xyz.

2. Connect your MetaMask wallet by clicking the “Connect Wallet” button and approving the connection request.

3. Paste your Monad-compatible wallet address into the input field provided on the faucet page.

4. Click “Request MON” and wait for the transaction to confirm. Each request yields 0.5 MON, with a cooldown period of 24 hours between requests.

5. Verify receipt by checking your wallet balance or viewing the transaction on the testnet block explorer.

Verifying Contract Interaction Readiness

1. Ensure your MetaMask is set to the Monad Testnet and that you hold at least 0.1 MON to cover basic gas fees for contract calls.

2. Visit a verified testnet dApp such as https://bridge.testnet.monad.xyz to initiate a cross-chain deposit simulation.

3. Attempt to approve a token allowance using the MON token contract address 0x7a1F...cD9e (verified on the testnet explorer).

4. Submit a simple transfer transaction to another testnet address and monitor its inclusion in the next block via the explorer.

Common Issues and Fixes

1. Q: Why does MetaMask show “Unknown network” after adding Monad Testnet?A: This occurs if the Chain ID was entered incorrectly. Recheck that Chain ID is exactly 11111—no leading zeros or extra characters.

2. Q: My faucet request fails with “Invalid address format”.A: Monad addresses follow EVM-compatible checksum formatting. Ensure your MetaMask address is pasted in lowercase without prefix, or use the “Copy Address” function directly from MetaMask.

3. Q: Transactions remain pending for over five minutes.A: Confirm your RPC endpoint is https://testnet-rpc.monad.xyz. Third-party RPCs may not be synced or authorized for testnet interaction.

4. Q: Can I use the same wallet on Monad Testnet and mainnet simultaneously?A: Yes. MetaMask supports multiple networks independently. Switching networks does not affect private keys or balances across chains—only the active context changes.