> For the complete documentation index, see [llms.txt](https://docs.merlinchain.io/merlin-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.merlinchain.io/merlin-docs/user-quick-start/how-to/gas.md).

# Gas

Currently, Merlin Chain uses native BTC (Merlin\_BTC) as the primary gas token for transaction fees, while MERL can also be used as gas in the AA wallet.

* [Merlin\_BTC](/merlin-docs/user-quick-start/how-to/gas/merlin_btc.md)
* [MERL (AA Wallet)](/merlin-docs/user-quick-start/how-to/gas/merl-aa-wallet.md)

### Gas Subsidy for MERL Withdrawals

When you withdraw **MERL tokens** from most of exchanges to your **on-chain wallet**—whether it's an AA Wallet, EVM Wallet, or Bot-generated Wallet—Merlin Chain will automatically airdrop enough gas to cover the first few transactions.

Details:

* If the **withdrawal amount exceeds 100 MERL**(after deducting the exchange’s fees), a Gas subsidy will be automatically applied.
* If you need more Gas, simply visit [**MerlinSwap**](https://merlinswap.org/home), where you can buy more MERL or swap MERL for Merlin\_BTC.

This update provides a **long-term solution** designed to streamline your experience and eliminate concerns about the initial Gas fees on Merlin Chain.