> For the complete documentation index, see [llms.txt](https://docs.watchdata.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.watchdata.io/blockchain-apis/bitcoin-api/rawtransactions-rpcs/combinepsbt.md).

# combinepsbt

Combine multiple partially signed Bitcoin transactions into one transaction.

Implements the Combiner role.

### Argument #1 - txs

**Type:** json array, required

The base64 strings of partially signed transactions

```
[
  "psbt",    (string) A base64 string of a PSBT
  ...
]
```

**Result**

| Name | Type   | Description                                     |
| ---- | ------ | ----------------------------------------------- |
| str  | string | The base64-encoded partially signed transaction |