# Introduction

The open REST API of the Retailys system allows anyone to program their own applications, bringing new functionality to administration, programming connections to external applications (accounting or warehouse software) or just creating small applications designed for specific activities (eg summary analysis or statistics).

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We develop our applications on the Symfony framework. We use devstack with docker images on Azure from Microsoft in cloud.
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Typical types of applications that can be programmed thanks to the REST API of the Retailys.com system are in particular the following:

* new sales channels (marketplaces, comparators of goods, social networks, ...)
* bridges to accounting, warehousing or ERP systems
* logistics (carriers, logistics centers)
* exports to advertising systems
* analytical tools, business intelligence
* connection to data sources (eg suppliers)


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```
GET https://developers.retailys.com/master.md?ask=<question>
```

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Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.