> For the complete documentation index, see [llms.txt](https://docs.syncswap.xyz/syncswap/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.syncswap.xyz/syncswap/protocol-overview/paymaster.md).

# Paymaster

The SyncSwap Paymaster is a low-level transaction service powered by the Native Account Abstraction (AA) of ZKsync. Integrated seamlessly with the SyncSwap app, the Paymaster removes the traditional barrier of requiring native ETH for transaction fees

#### Pay Gas In *Any Token*

Allows users to pay gas fees using multiple ERC20 tokens (such as USDC or USDT), which is particularly beneficial for users transacting primarily in stablecoins

#### *Gas-Free* Swaps

Enables entirely gas-free swaps under specific circumstances, such as when sponsored by the protocol or ecosystem partners to enhance user onboarding


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