> 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/merlin_btc.md).

# Merlin\_BTC

## **Testnet**

Please join our [Discord server](https://discord.gg/merlinchain) to get the Testnet BTC for Gas.

{% embed url="<https://youtu.be/7zHVWZXvUwg>" %}

## **Mainnet**

**Step 1(Optional):** Withdraw BTC from CEXs to Bitcoin Layer 1 directly and then bridge it to Merlin Chain

If you have BTC in your Layer 1 address, feel free to navigate to Step 2.

Tutorials 👉 [How to Withdraw BTC from CEXs](/merlin-docs/user-quick-start/how-to/gas/how-to-withdraw-btc-from-cexs.md)

**Step 2:** Bridge in BTC as Gas via [Official Bridge](/merlin-docs/user-quick-start/how-to/bridge/official-bridge.md) or swap some BTC as gas via [Meson](https://meson.fi/) or other third-party bridges. Tutorials 👉 [Bridge](/merlin-docs/user-quick-start/how-to/bridge.md)