> ## Documentation Index
> Fetch the complete documentation index at: https://docs.vapify.agency/llms.txt
> Use this file to discover all available pages before exploring further.

# How Vapify Works

> The Agency, Sub Account, and Assistant hierarchy that everything else builds on.

## Overview

Every feature in Vapify sits inside one object hierarchy. Understanding it makes the rest of the platform predictable.

## The hierarchy

```mermaid theme={null}
flowchart TD
    A["Agency<br/>(you, the Vapify customer)"] --> B["Sub Account<br/>(one per client business)"]
    B --> C["Users<br/>Primary user + additional users"]
    B --> D["Assigned Voice Assistants<br/>mapped from your provider account"]
    B --> E["Phone Numbers"]
    B --> F["Call Logs & Recordings"]
    B --> G["Billing<br/>per-minute rate, monthly fee, wallet/credits"]
```

* **Agency**: your Vapify account. This is where branding, custom domain, custom email, and your provider connection live.
* **Sub account**: one per client. Each has its own users, assigned assistants, phone numbers, call logs, and billing configuration.
* **Assistant**: created in Vapi or Retell, then assigned to a sub account. Assistants are never built inside Vapify itself; Vapify only assigns and prices them.

## How money flows

```mermaid theme={null}
flowchart LR
    A["Provider cost<br/>$0.15/min"] --> B["Your markup<br/>+$0.05/min"] --> C["Client charge<br/>$0.20/min"]
```

Example: Vapi charges you \$0.15/min, you set the client rate at \$0.20/min, you keep \$0.05/min profit. See [How Billing Works](/billing/how-billing-works) for the full model, including monthly retainers and the wallet/credits system.

## How assistants get to clients

1. You create and configure the assistant in your provider's dashboard (Vapi or Retell).
2. You connect that provider account to your Vapify agency.
3. Vapify syncs the assistant list.
4. You assign a specific assistant to a specific sub account and set its price.

See [Assign an AI Assistant](/getting-started/assign-an-ai-assistant) for the walkthrough.

## Related Articles

* [How Billing Works](/billing/how-billing-works): the money flow in full detail
* [Understanding Sub Accounts](/running-your-agency/understanding-sub-accounts): what lives inside a sub account
* [Glossary](/start-here/glossary): definitions for every term used here