# 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)


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
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```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.
