> For the complete documentation index, see [llms.txt](https://developer.siteminder.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developer.siteminder.com/get-started/integration-types/application.md).

# Application

Access reservation and property data from SiteMinder to power your guest experience, marketing, or operational tools.

Your application gets data from SiteMinder — reservations, availability, and pricing — to feed tools like CRM platforms, guest messaging, upselling engines, and self check-in solutions.

> **API used:** 
>
> [**SMX**](/smx-api/smx-api.md) - access to reservation data, availability, pricing, and property information.

***

### What you need to build

#### Core

Core functionality enables your application to receive data in SiteMinder.

* [Reservations](/smx-api/reference/reservations.md)

#### Additional

Additional functionality extends your integration beyond core certification scope.

* [Availability and Rates](/smx-api/reference/availability-and-rates.md)

{% hint style="danger" %}
Availability and Rates data is not yet available for SiteMinder Platform and Little Hotelier properties.
{% endhint %}

→ View the full [SMX API Overview](/smx-api/guides/api-overview.md)

{% hint style="success" icon="sparkles" %}

## Still have questions?

Use the <i class="fa-gitbook-assistant">:gitbook-assistant:</i> **Ask** button at the top of the page to chat with our AI assistant — it can help you navigate the guide, understand requirements, and troubleshoot issues.

If you need more support, visit [Integration Support](/integration-support/integration-support.md).
{% endhint %}


---

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