# Multi Signature

Before start using Keystone for bitcoin multi-signature, it's highly recommended to fully digest these 2 articles (tutorials):

{% embed url="<https://medium.com/shiftcrypto/the-pitfalls-of-multisig-when-using-hardware-wallets-9b0e98e4c19c>" %}

{% embed url="<https://btcguide.github.io/>" %}

## With Casa

{% content-ref url="/pages/-MkpBGPcelERWFQflli\_" %}
[Casa](/3rd-party-wallets/bitcoin-wallets/casa.md)
{% endcontent-ref %}

{% hint style="info" %}
**Tip：Please check** [**here**](https://keys.casa/keystone) **for more related tutorial and details.**
{% endhint %}

## With Electrum

{% content-ref url="/pages/-MW9CO2vcUxAXuQ5x\_f2" %}
[Electrum 2/2 PSBT Multi-sig](/3rd-party-wallets/bitcoin-wallets/electrum/electrum-2-2-psbt-multi-signature.md)
{% endcontent-ref %}

{% content-ref url="/pages/-MW9DogEawYCC7SDn5Ng" %}
[Electrum 2/3 PSBT Multi-sig](/3rd-party-wallets/bitcoin-wallets/electrum/electrum-2-3-psbt-multi-signature.md)
{% endcontent-ref %}

## With Sparrow

{% content-ref url="/pages/-MYcJltOZihHVJNT33Jq" %}
[Sparrow Wallet 2/3 PSBT Multi-sig](/3rd-party-wallets/bitcoin-wallets/sparrow/sparrow-2-3-psbt-multi-sig.md)
{% endcontent-ref %}

## With Specter

{% content-ref url="/pages/-MVzjfEvgSZoZrQ-hfoG" %}
[Specter 2/2 PSBT Multi-Sig](/3rd-party-wallets/bitcoin-wallets/specter/cobo-vault-+-coldcard-+-specter.md)
{% endcontent-ref %}

{% content-ref url="/pages/-MdoHp2fqzi1CxYQkWJ8" %}
[Specter 2/3 PSBT Multi-Sig](/3rd-party-wallets/bitcoin-wallets/specter/specter-2-3-multi-sig.md)
{% endcontent-ref %}

## With BlueWallet

{% content-ref url="/pages/-Mf6cBoOINjuvhnOeRyQ" %}
[BlueWallet 2/3 PSBT Multi-sig: BlueWallet + Keystone + ColdCard](/3rd-party-wallets/bitcoin-wallets/bluewallet/bluewallet-2-3-psbt-multi-sig-bulewallet-keystone-and-coldcard.md)
{% endcontent-ref %}

{% content-ref url="/pages/-MewiPrgoLeQoXde14j1" %}
[BlueWallet 2/3 PSBT Multi-sig: Keystone + ColdCard + SeedPicker](/3rd-party-wallets/bitcoin-wallets/bluewallet/bluewallet-2-3-psbt-multi-sig.md)
{% endcontent-ref %}

## With Nunchuk

{% content-ref url="/pages/IGQTcrQZo0SkoaxNWL9V" %}
[Nunchuk](/3rd-party-wallets/bitcoin-wallets/nunchuk.md)
{% endcontent-ref %}


---

# 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:

```
GET https://support.keyst.one/advanced-features/multi-signature.md?ask=<question>
```

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.