> For the complete documentation index, see [llms.txt](https://dev.apirtc.com/apirtc-developer-portal/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://dev.apirtc.com/apirtc-developer-portal/overview/billing.md).

# Billing

## Billing

### Usage-based

**ApiRTC** billing is based on usage in minutes x participant in the room.

* Video audio communications are billed by the number of minutes in communication by the number of participants.
* SMS are billed for each message sent. 
* SIP incoming calls are billed by the number of minutes

#### Per Enterprise

Organizing your communication traffic by use case is paramount to simplifying the billing allocation process. The concept of Enterprise allows developers to spin up new subaccounts for each new use case and business unit, allowing billing and traffic to be allocated efficiently at the end of every month.

{% hint style="info" %}
Understand more about pricing: [ApiRTC pricing](https://apirtc.com/pricing/)
{% endhint %}