> For the complete documentation index, see [llms.txt](https://docs.zaui.com/developer-api-documents/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.zaui.com/developer-api-documents/master.md).

# Developer Documentation Library

## Welcome to the Zaui Software Developer API Documentation Platform

Zaui provides a number of different APIs  allowing developers to expand or build on the [Zaui Platform](https://www.zaui.com).  These APIs provide frameworks to easily create web, desktop and mobile applications that directly integrate and interact with one or more Zaui supplier systems.

**I am a reseller** connecting to one or more supplier systems.

* Reseller <> Supplier - [OCTo Specification](https://docs.zaui.com/octo/) (json) (*current*)
* Reseller <> Supplier - [I/O Specification](https://docs.zaui.com/io/) (xml) (deprecated)&#x20;

**I am a developer** connecting to a single Zaui system.

* Developer <> Supplier - [Zaui API Specification ](https://docs.zaui.com/zapi/)(xml / json)

**I am a developer** and want data pushed to my endpoints:

* Supplier Zaui System -> Webhook Endpoint URL - [Web-hook Specification](https://docs.zaui.com/webhooks/) (json)

&#x20;


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