Paymasters

Besides Account Abstraction, ZKsync natively supports paymasters. Introduced in EIP-4337, paymasters allow to implement an intermediate step for transaction processing that can alter how the fees are being processed.

This feature can be used for things like:

• Ability to pay fees in ERC20 or even NFT tokens.
• Subsidizing transactions.
• Managing fee payments for a static set of wallets.

...and many others.

If you want to learn about Paymaster design, see the protocol documentation.

If you prefer learning from tutorials, you can check out the following ones:

• Build an ERC20 custom paymaster
• Dapp with gated NFT paymaster
• Frontend Quickstart with a Paymaster
• Integrate permissionless multi-signer paymaster into your Dapp