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

# Billing Overview

> Manage payments, track expenses, and download invoices in UponAI.

The **Billing** tab lets you manage payments, review your spending, and download invoices. UponAI uses Stripe for secure payment processing.

## What You Can Do

* **Payment Management** — Update payment methods by clicking **Change payment methods**
* **Billing History** — Review monthly expenses with detailed cost breakdowns by category (e.g., Voice Engine, LLM)
* **Invoices** — Download invoices by clicking the **Invoice** button next to the relevant billing period
* **Current Charges** — View ongoing costs for the current billing period with itemized usage details

## Usage Breakdown

The **Usage** tab on the Billing page shows:

| Metric                    | Description                                                          |
| ------------------------- | -------------------------------------------------------------------- |
| Total Cost                | Total expenses for the selected billing period                       |
| Call Minutes              | Total call minutes used                                              |
| Average Cost Per Minute   | Average cost per call minute                                         |
| Daily / Weekly Call Costs | Spending trends over time — useful for identifying high-cost periods |
| Cost by Provider          | Breakdown across voice engines, LLMs, telephony, and concurrency     |