MetaMask Bridge enables cross-chain token transfers by aggregating routes across protocols, optimizing fees, and executing swaps across EVM networks.
It queries providers like LI.FI and Socket, then ranks results by cost and execution time.
MetaMask integrates providers including Across Protocol, Hop Protocol, Connext, Celer cBridge, and Polygon Bridge — each supplying liquidity, speed, or security advantages.
A bridge transfers identical assets. A cross-chain swap transfers different assets in one transaction, and MetaMask bundles swaps and bridging into a single signature.
| Feature | Bridge | Cross-Chain Swap |
|---|---|---|
| Asset type | Same | Different |
| Example | ETH → ETH | ETH → USDC |
| Steps | 1 | Bundled multi-step |
| Complexity | Low | Higher |
MetaMask supports EVM-compatible networks including Ethereum Mainnet, Polygon, Arbitrum, Optimism, BNB Smart Chain, Linea, Base, and Avalanche. Each network requires its own native gas token — ETH on Ethereum and Arbitrum, POL on Polygon, BNB on BNB Chain.
Supported token categories include native tokens (ETH, AVAX), stablecoins (USDC, USDT, DAI), wrapped tokens (WETH), and other ERC-20 tokens with available liquidity. Tokens without a route display “Unable to bridge.”
Before Bridging, CheckYour wallet must hold the gas token, the transfer value must be between $10 and $50,000, and ERC-20 tokens must have approval granted before the bridge can execute.
Token approval grants a smart contract access to spend your ERC-20 tokens. The user submits an approval transaction, the smart contract receives an allowance, and the bridge then transfers the tokens. Approval costs gas and typically happens once per token.
This launches MetaMask Portfolio.
Choose where you’re bridging from.
Choose where the funds should arrive.
Review the quote, then confirm the transaction.
Open MetaMask Mobile, tap the menu button, tap “Bridge,” select networks and tokens, enter the amount, and confirm. Alternatively, use the in-app browser to navigate to portfolio.metamask.io, connect your wallet, and execute the bridge there.
Quotes are compared on output amount (tokens received), estimated time, and total cost. Choose the lowest cost to maximize output, or the fastest route to minimize delay — quotes refresh every minute.
| Fee Type | Range |
|---|---|
| MetaMask fee | 0.875% |
| Bridge fee | 0.1–0.5% |
| Gas fee | Variable |
| Price impact | Variable |
All of these fees are included in the final quote before you confirm.
Standard routes complete in 1–15 minutes; high congestion can cause longer delays. If bridged tokens don’t arrive, wait up to 3 hours, check transaction status, then contact support — never resend or cancel an active bridge, as duplicate actions risk fund loss.
MetaMask Multichain Accounts unify multiple blockchain addresses under one account, letting you manage assets across Ethereum, Polygon, Arbitrum, and Solana without switching accounts — simplifying tracking and reducing network switching.
Open MetaMask, select Bridge, choose networks and tokens, enter the amount, review the quote, and confirm. MetaMask aggregates routes and executes the transfer automatically.
MetaMask charges a 0.875% fee per transaction, plus additional gas fees and bridge provider fees.
MetaMask supports ERC-20 tokens with available liquidity. Tokens without an active route cannot be bridged.
Wait up to three hours and check the transaction status. Contact support if it remains pending — never resend or cancel the transaction.
The minimum is $10, though some networks require higher minimums up to $30.
