Description:
Suggestion: Allow Paying Gas Fees with the Token Being Used in the Transaction
Current Problem:
When users want to swap, bridge, or perform any transaction across networks, they must hold the native gas token (ETH, MATIC, BNB, etc.) to cover gas fees.
This system is inconvenient because:
It forces users to buy small amounts of each network’s native token.
It complicates cross-chain operations (for example, moving funds from Base to Linea).
It confuses new users who don’t understand why they can’t use their stablecoins or other tokens directly for gas.
Proposed Solution:
Enable MetaMask to automatically pay gas fees using the token involved in the transaction, by performing a micro-swap in the background.
In practice:
The user selects a transaction (send, swap, or bridge) with any token (e.g., USDC).
MetaMask estimates the gas fees required on both the source and destination networks.
A tiny portion of the token being transferred is automatically swapped for the exact amount of the native token needed to cover gas fees.
The user doesn’t need to manually hold or buy gas tokens anymore.
Practical Example:
You want to send USDC from Base to Linea:
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You only have USDC on Base.
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MetaMask detects that gas fees will be required on both Base (ETH) and Linea (ETH).
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Before executing the bridge, MetaMask automatically swaps a very small part of your USDC for the equivalent amount of ETH needed to cover gas on both networks.
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The entire operation is completed in one click, with no manual intervention.
Advantages:
Simplified user experience: no need to manage or pre-purchase native gas tokens.
Easier onboarding: new users can use MetaMask without understanding gas mechanics.
Full interoperability: smoother cross-chain operations.
Automatic optimization: MetaMask could dynamically calculate and convert only the minimal amount of gas required.
Potential Impact:
This mechanism would make Web3 transactions as seamless as traditional payments: you simply hold one balance, make a transaction, and MetaMask handles the technical side invisibly.
It’s a step toward a “smart MetaMask”, capable of auto-managing gas for users — a revolutionary improvement for mainstream crypto adoption.
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