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

# Card spend controls

> Limit which merchants a Prepaid Visa Card can be used for

You can control where a prepaid Visa card can be spent by attaching a **Runa-authored spend rule template** to the card. A template bundles a set of restrictions — such as Merchant Category Code (MCC) allow/deny lists — that are applied to the issued card.

## Attaching a template

To attach a template, add a `usage_config` object to the `SINGLE` product and set its `spend_rules_template_id` to the identifier of the template you want to apply.

```http title="Example Prepaid Visa Card order with a spend rule template" icon="globe" expandable theme={null}
POST https://api.runa.io/v2/order
Content-Type: application/json
X-Api-Key: <your API key>

{
    "payment_method": {
        "type": "ACCOUNT_BALANCE",
        "currency": "USD"
    },
    "items": [
        {
            "face_value": 10,
            "distribution_method": {
                "type": "EMAIL",
                "email_address": "<your recipient's email address>"
            },
            "products": {
                "type": "SINGLE",
                "value": "VISASL-3M-USD",
                "usage_config": {
                    "spend_rules_template_id": "<runa authored template id>"
                }
            }
        }
    ]
}
```

When you set `usage_config` on an order, it is returned in the [order details](/reference/2024-02-05/endpoint/orders/get) so you can confirm which template was applied.

<Info>
  A spend rule template defines the spending pattern enforced on a card, based
  on MCC rules — each rule either allows or blocks transactions for a given
  merchant category. Multiple rules can be bundled into a single template, and
  one template is applied per card. Templates are authored by Runa. If you have
  a business case that needs one, reach out to your Account Manager or email
  [support@runa.io](mailto:support@runa.io) — we'll create the template for you.
</Info>

<Note>
  `usage_config` only applies to prepaid Visa cards. If you set it on any other
  product it is ignored.
</Note>