How to bridge tokens to the Blast network via MetaMask? (L2 Airdrop)

Setting Up MetaMask for Blast Network Integration

1. Ensure MetaMask is updated to the latest version on desktop or mobile. Older versions may lack support for custom RPC configurations required by Blast.

2. Open MetaMask and navigate to Settings > Networks > Add Network. Select “Add a network manually” instead of relying on automatic detection.

3. Input Blast’s official RPC endpoint: https://rpc.blast.io. This URL is verified and maintained by the Blast core team.

4. Set Chain ID to 81457, which is the canonical identifier for the Blast mainnet as published in their official documentation.

5. Assign the network symbol “BLAST” and enter https://blast.io as the block explorer URL. Confirm all fields before saving.

Preparing Your Wallet for Token Bridging

1. Verify your wallet holds sufficient ETH on Ethereum mainnet to cover gas fees for both the initial deposit and the subsequent claim on Blast.

2. Confirm that the tokens you intend to bridge are ERC-20 compliant and supported by the Blast bridge interface. Unsupported assets will not appear in the bridging UI.

3. Check if your MetaMask account is connected to Ethereum mainnet before initiating any action. Switching networks mid-process can cause transaction failures.

4. Disable any third-party token auto-detection extensions that might interfere with token balance recognition on Blast’s interface.

5. Manually add the Blast-native token contract address for BLAST if it does not auto-populate after network switch — 0x4300000000000000000000000000000000000001.

Executing the Bridge Transaction via Blast Bridge Portal

1. Visit https://bridge.blast.io directly — avoid clicking links from unverified sources or social media posts.

2. Connect your MetaMask wallet using the “Connect Wallet” button. Ensure the connection request originates solely from the blast.io domain.

3. Select the token and amount to bridge. The interface displays real-time estimates for confirmation time and gas cost on Ethereum.

4. Click “Deposit” and approve the transaction in MetaMask. Awaiting Ethereum finality typically takes 5–15 minutes depending on network congestion.

5. After Ethereum confirmation, the Blast bridge triggers an automated minting event. Tokens appear in your MetaMask wallet once the Blast L2 block confirms the mint — usually within 1–3 minutes.

Claiming the Blast Airdrop Eligibility

1. Airdrop eligibility depends on holding specific tokens or interacting with designated protocols before the snapshot date of March 15, 2024.

2. Visit https://airdrop.blast.io and connect the same MetaMask wallet used for bridging activity.

3. The portal automatically checks on-chain history for qualifying deposits, swaps, or liquidity positions across supported DeFi applications.

4. If eligible, the interface displays the exact BLAST token allocation and a “Claim” button. No additional gas is required on Ethereum for this step.

5. Claiming executes on Blast L2 only. Confirm the transaction in MetaMask while connected to the Blast network — gas is paid in ETH held on Blast.

Frequently Asked Questions

Q: Can I bridge tokens from other L2s like Arbitrum or Optimism directly to Blast?A: No. The official Blast bridge only accepts deposits from Ethereum mainnet. Cross-L2 bridging requires routing through Ethereum first.

Q: Why does my bridged token balance show zero even after confirmation on Blast?A: This occurs when the token contract is not manually added to MetaMask. Use the “Import Token” function and paste the Blast-deployed token address.

Q: Is there a minimum amount required to trigger the airdrop claim?A: There is no minimum threshold. Any qualifying interaction — including a single $0.01 swap — satisfies the baseline eligibility condition.

Q: What happens if I use a hardware wallet like Ledger with MetaMask?A: Hardware wallets are fully supported. Ensure the Ledger app for Ethereum is open and that MetaMask is set to “Ledger Live” mode during signing.