# Resources and Master

{% content-ref url="resources-and-master/port-master" %}
[port-master](https://docs.cleartax.in/cleartax-docs/invoicing-api/invoicing-api-reference/resources-and-master/port-master)
{% endcontent-ref %}

{% content-ref url="resources-and-master/country-master" %}
[country-master](https://docs.cleartax.in/cleartax-docs/invoicing-api/invoicing-api-reference/resources-and-master/country-master)
{% endcontent-ref %}

{% content-ref url="resources-and-master/state-master" %}
[state-master](https://docs.cleartax.in/cleartax-docs/invoicing-api/invoicing-api-reference/resources-and-master/state-master)
{% endcontent-ref %}

{% content-ref url="resources-and-master/currency-master" %}
[currency-master](https://docs.cleartax.in/cleartax-docs/invoicing-api/invoicing-api-reference/resources-and-master/currency-master)
{% endcontent-ref %}

{% content-ref url="resources-and-master/unit-master" %}
[unit-master](https://docs.cleartax.in/cleartax-docs/invoicing-api/invoicing-api-reference/resources-and-master/unit-master)
{% endcontent-ref %}

{% content-ref url="resources-and-master/document-types" %}
[document-types](https://docs.cleartax.in/cleartax-docs/invoicing-api/invoicing-api-reference/resources-and-master/document-types)
{% endcontent-ref %}

{% content-ref url="resources-and-master/supply-types" %}
[supply-types](https://docs.cleartax.in/cleartax-docs/invoicing-api/invoicing-api-reference/resources-and-master/supply-types)
{% endcontent-ref %}