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

# Balance

> Manage your account balance and auto top-up settings.

Prem API uses a **prepaid balance** model. Your account balance is deducted each time you make an API request. The cost of each request depends on the model used and the number of tokens consumed.

You can view and manage your balance in the [Dashboard](https://dashboard.prem.io/billing).

## Top Up Balance

You can manually add funds to your account at any time through the Dashboard.

* **Minimum amount:** \$1
* **Payment processing:** Stripe

Once the payment is confirmed, the funds are added to your balance immediately.

<Tip>
  Keep your balance above zero to avoid interruptions. If your balance reaches zero, API requests will be blocked until you top up.
</Tip>

## Auto Top-Up

Auto top-up automatically replenishes your balance when it drops below a configured threshold. This helps ensure uninterrupted API access.

To enable auto top-up, configure the following settings in the Dashboard:

| Setting                       | Description                                                                 |
| ----------------------------- | --------------------------------------------------------------------------- |
| **Minimum Balance Threshold** | When your balance falls below this amount, an automatic top-up is triggered |
| **Top Up To**                 | The target balance after the auto top-up completes                          |

<Info>
  Auto top-up requires a [default payment method](/developer-resources/billing/payment) to be set.
</Info>

### Example

If your Minimum Balance Threshold is 10 USD and Top Up To is 100 USD:

* When your balance drops below the threshold, the system will automatically charge your default payment method
* Your balance will be topped up to 100 USD