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

# SDK Methods & Functions

The EMV Core SDK provides pre-certified EMV payment APIs for kiosk and point-of-sale (POS) developers. The SDK handles card reading, authorization, and server communication so you can focus on your application’s UI and business logic.

This section guides you through using the SDK features. See the following pages for more information:

<CardGroup cols={3}>
  <Card icon="credit-card" title="Payment" href="/docs/integrate-pos-device/emv-core/sdk-methods-functions/payment-1">
    Integrate and manage payment functionality, including pre-authorization, transaction confirmation, and voids.
  </Card>

  <Card icon="server" title="Remote Management" href="/docs/integrate-pos-device/emv-core/sdk-methods-functions/remote-management">
    Manage firmware updates, device configuration, and diagnostics to keep devices running smoothly.
  </Card>

  <Card icon="bell" title="Event Callbacks" href="/docs/integrate-pos-device/emv-core/sdk-methods-functions/event-callbacks">
    Get real-time updates on transaction status through the SDK's event callbacks.
  </Card>

  <Card icon="comment-dots" title="Reader Messages" href="/docs/integrate-pos-device/emv-core/sdk-methods-functions/reader-messages">
    Handle and display the user-facing prompts and instructions the payment terminal sends.
  </Card>
</CardGroup>