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

# Override virtual balance

> Manually override the virtual balance of a card.

Manually overrides the virtual balance of a card. Requires an API key with access level 2 or higher.

## Path parameters

<ParamField path="cardId" type="string" required>
  Card identifier.
</ParamField>

## Body

<ParamField body="virtual_balance" type="number" required>
  Virtual balance amount in USD. Must be greater than or equal to 0.
</ParamField>

## Response

Returns the new virtual balance as a JSON number.

<RequestExample>
  ```bash cURL theme={null}
  curl -X PATCH "https://api.cryptomate.me/cards/virtual-cards/card_6f1e2a30-4a3c-4b2e-9a1d-5e8c9b7a1f23/virtual-balance" \
    -H "x-api-key: $CRYPTOMATE_API_KEY" \
    -H "Content-Type: application/json" \
    -d '{
      "virtual_balance": 2500.00
    }'
  ```
</RequestExample>

<ResponseExample>
  ```json 200 OK theme={null}
  2500.00
  ```

  ```json 412 Precondition Failed theme={null}
  {
    "code": "VAL",
    "message": "The provided virtual balance amount cannot be negative. Please enter a valid non-negative value."
  }
  ```
</ResponseExample>