> For the complete documentation index, see [llms.txt](https://docs.ecng.digital/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.ecng.digital/introduction.md).

# Introduction

The emergence of virtual currency as a form of payment is a rapidly growing phenomenon. Adopting this exponential rise would help pave the way for limitless growth in blockchain technologies and services. While still underdeveloped, an increasing number of established companies and institutions are trying to catch up with consumer demand by integrating virtual currencies into their payment systems.

### What are our main features?

* Accept crypto deposits and donations online
* Make secure payouts according to the latest C2B, B2C, and B2B trends
* Convert fiat to cryptocurrencies and vice versa on the fly
* Mass payouts - sending cryptofunds in batches
* Issue fiat-denominated invoices for goods and services

{% hint style="info" %}
**Need more business or technical insight?**

Feel free to address your questions and concerns to:

<info@ecng.digital>
{% endhint %}

### **Are interested in integration specifics?**

Check our integration guide and endpoints explanation:

{% content-ref url="/pages/gQYPkWfUdm4x6gZ2SHEY" %}
[Environments](/integration-guide/environments.md)
{% endcontent-ref %}

{% content-ref url="/pages/VbWZ0Ocj3wWEHlOJNNHH" %}
[API Credentials](/integration-guide/api-credentials.md)
{% endcontent-ref %}

{% content-ref url="/pages/NyKsNtRsxZRB77d3RN6b" %}
[API Authorization](/integration-guide/api-authorization.md)
{% endcontent-ref %}

{% content-ref url="/pages/YLdNwysRrZbuIve3I7tx" %}
[API Endpoints](/integration-guide/api-endpoints.md)
{% endcontent-ref %}

{% content-ref url="/pages/3ItvI6YELt0nzya4FpqS" %}
[Callbacks](/integration-guide/callbacks.md)
{% endcontent-ref %}