> For the complete documentation index, see [llms.txt](https://docs.xplorpay.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.xplorpay.com/guides/cloud-emv/cloud-emv-integration.md).

# Cloud EMV integration

The following steps explain how Cloud EMV semi-integration works:

{% stepper %}
{% step %}
**The point-of-sale (POS) application sends a payment request to our REST-based** [**Cloud EMV API**](https://docs.xplorpay.com/api-references/payments/cards/transaction-emv) **services.**
{% endstep %}

{% step %}
**Our Cloud EMV service sends card data requests to cloud-based integration services that communicate with** [**payment terminals**](https://docs.xplorpay.com/getting-started/devices).

{% hint style="info" %}
The [Cloud EMV API](https://docs.xplorpay.com/api-references/payments/cards/transaction-emv) allows you to integrate [payment terminals](https://docs.xplorpay.com/getting-started/devices) once and replace them as needed.
{% endhint %}
{% endstep %}

{% step %}
**Cloud-based integration services route card data request and activate the payment terminal**.
{% endstep %}

{% step %}
**The payment terminal displays a payment form for the customer to enter their card data and submit it.**
{% endstep %}

{% step %}
**The point-of-sale (POS) application sends a card transaction authorization request, including card data from the payment terminal to our REST-based** [**Cloud EMV API**](https://docs.xplorpay.com/api-references/payments/cards/transaction-emv) **services.**
{% endstep %}

{% step %}
**Cloud EMV service sends the card transaction response to the point-of-sale (POS) application.**
{% endstep %}
{% endstepper %}

{% hint style="warning" %}
The point-of-sale (POS) system must be securely connected to the internet to prevent connection timeout errors when receiving a response from the [Cloud EMV API](https://docs.xplorpay.com/api-references/payments/cards/transaction-emv) services.
{% endhint %}


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