MetaMask Swaps is a powerful MetaMask feature that allows you to exchange one cryptocurrency token for another directly within your wallet. This streamlined solution reduces transaction steps and minimizes risks associated with third-party smart contracts when acquiring new tokens.
Supported Networks for MetaMask Swaps
Currently available on these networks:
- Ethereum Mainnet
- BNB Smart Chain
- Avalanche C-Chain
- Polygon
- Optimism
- Arbitrum
- zkSync Era
- Linea
- Base
Key Considerations Before Swapping
- Research tokens thoroughly - Even ERC-20 compliant tokens may have programmable functions affecting their use
- Understand slippage - The acceptable price variance between transaction initiation and completion
- Custom tokens - May require manual addition if not automatically detected
- Support limitations - MetaMask only provides support for swaps conducted through its official interface
👉 Learn how to maximize your swap efficiency
Preparing Your Swap
- Select the token you want to exchange from the dropdown menu
- Choose the desired destination token
- Adjust the amount until satisfied with the exchange rate
MetaMask automatically:
- Searches decentralized exchanges for best rates
- Tests transactions for success probability
- Adjusts for slippage (typically 2%)
Executing Your Swap
Key features during execution:
- Real-time price updates
- Clear display of token quantities
- Detailed rate calculations
- Advanced gas settings
Gas Fees Explained
Two values appear:
- Estimated gas fee
- Maximum fee (cap)
👉 Get the best gas rates for your transactions
Advanced Swap Features
- Send-and-Swap: Convert tokens during transfers
- Precise Output Swapping: Specify exact received amounts
- Multi-Network Swapping: Works across EVM-compatible chains
FAQ
Why are some tokens missing from swaps?
Some lesser-known tokens may not appear in default lists.
How do I see purchase prices?
Transaction details display historical rates.
Why did my swap fail?
Common causes include insufficient gas or rapidly changing prices.
Why is the swap button grayed out?
Typically indicates incompatible tokens or network issues.
Why did I receive fewer tokens than expected?
Price fluctuations during transaction processing may affect final amounts.
What if I get "Error Fetching Quote"?
Try adjusting amounts or checking network connection.
Remember: MetaMask acts as an aggregator, not a liquidity provider. Always verify transaction details before confirming.