# 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 - ***coming soon***

{% 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="integration-guide/environments" %}
[environments](https://docs.ecng.digital/integration-guide/environments)
{% endcontent-ref %}

{% content-ref url="integration-guide/api-credentials" %}
[api-credentials](https://docs.ecng.digital/integration-guide/api-credentials)
{% endcontent-ref %}

{% content-ref url="integration-guide/api-authorization" %}
[api-authorization](https://docs.ecng.digital/integration-guide/api-authorization)
{% endcontent-ref %}

{% content-ref url="integration-guide/api-endpoints" %}
[api-endpoints](https://docs.ecng.digital/integration-guide/api-endpoints)
{% endcontent-ref %}

{% content-ref url="integration-guide/callbacks" %}
[callbacks](https://docs.ecng.digital/integration-guide/callbacks)
{% endcontent-ref %}


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.ecng.digital/introduction.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

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.