> ## Documentation Index
> Fetch the complete documentation index at: https://docs.chift.eu/llms.txt
> Use this file to discover all available pages before exploring further.

# Data types

<CardGroup cols={2}>
  <Card href="/api-reference/endpoints/invoicing/retrieve-all-invoices" title="Invoices">
    Invoices
  </Card>

  <Card href="/api-reference/endpoints/invoicing/retrieve-all-taxes" title="Taxes">
    Taxes
  </Card>

  <Card href="/api-reference/endpoints/invoicing/retrieve-all-products" title="Products">
    Products
  </Card>

  <Card href="/api-reference/endpoints/invoicing/retrieve-all-opportunities" title="Opportunities">
    Opportunities
  </Card>

  <Card href="/api-reference/endpoints/invoicing/retrieve-all-contacts" title="Contacts">
    Contacts
  </Card>
</CardGroup>