> For the complete documentation index, see [llms.txt](https://doc.bittap.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://doc.bittap.org/developer-guides/api-reference/sendbtc.md).

# SendBtc

<details>

<summary>Step1: TransferBtc</summary>

Wallet calls this to transfer BTC to a specific address. Psbt is returned for the end user's sign.&#x20;

</details>

<details>

<summary>Step 2: PublishTransferBtc</summary>

The end user will sign the psbt returned from Step 1, and before call this to broadcast to BTC blockchain, the signed psbt needs to be finalized and extracted.&#x20;

</details>