# Special Transaction Types

{% content-ref url="special-transaction-types/signin" %}
[signin](https://docs.xaman.dev/concepts/special-transaction-types/signin)
{% endcontent-ref %}

{% content-ref url="special-transaction-types/batch-multiple-inner-signers" %}
[batch-multiple-inner-signers](https://docs.xaman.dev/concepts/special-transaction-types/batch-multiple-inner-signers)
{% endcontent-ref %}

{% content-ref url="special-transaction-types/paymentchannelauthorize" %}
[paymentchannelauthorize](https://docs.xaman.dev/concepts/special-transaction-types/paymentchannelauthorize)
{% endcontent-ref %}