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

# Overview

> Learn how to build common use cases using our Business API

This section showcases common use cases built with our Business API. Each guide walks through the full request sequence: which endpoints to call, in what order, and what to watch out for.

<Note>
  You need a working authentication to follow these guides. Visit the [Authentication](/get-started/business-api/authentication/introduction) section to get started.
</Note>

<Info>
  All code examples target the **Production** environment (`https://thirdparty.qonto.com/v2`). To run them against the Sandbox, use the [Sandbox base URL](/get-started/business-api/urls) and include the `X-Qonto-Staging-Token` header — see [Accessing the Sandbox environment](/get-started/general/sandbox-access).
</Info>

<CardGroup cols={2}>
  <Card title="Send a SEPA transfer to a trusted beneficiary" icon="paper-plane" href="/get-started/business-api/use-cases/send-sepa-transfer">
    List beneficiaries, verify the payee (VoP), and submit a transfer.
  </Card>

  <Card title="Sync client invoices and attachments" icon="file-invoice" href="/get-started/business-api/use-cases/sync-client-invoices">
    Keep client invoices and their attachments in sync with Qonto.
  </Card>

  <Card title="Sync supplier invoices and attachments" icon="file-import" href="/get-started/business-api/use-cases/sync-supplier-invoices">
    Pull supplier invoices and attachments into your system.
  </Card>

  <Card title="Bulk upload supplier invoices" icon="layer-group" href="/get-started/business-api/use-cases/bulk-upload-supplier-invoices">
    Upload supplier invoices in bulk to speed up onboarding.
  </Card>

  <Card title="Generate and download a Factur-X invoice" icon="file-pdf" href="/get-started/business-api/use-cases/generate-factur-x-invoice">
    Create a compliant Factur-X invoice and download the PDF.
  </Card>

  <Card title="Sync transactions and attachments" icon="arrows-rotate" href="/get-started/business-api/use-cases/sync-transactions">
    Keep transactions and their attachments in sync with Qonto.
  </Card>
</CardGroup>