---
title: "Domain buy extensions object"
url: "https://help.internetx.com/en/api/core-domain-buy-extensions-object/"
lang: "en"
section: "API reference — API reference (XML/JSON)"
breadcrumb: "API documentation (JSON/XML) > Objects"
updated: "2023-09-25"
---

# Domain buy extensions object

## Description

Extensions for [DomainBuyOrder](/en/api/core-domain-buy-order/). This extension is used to confirm the purchase price.

## Structure

| **Keyword JSON** | **Keyword XML** | **Occurs** | **Type** | **Format** | **Description** |
| --- | --- | --- | --- | --- | --- |
| amount | purchase\_price | 1 | number | double | Purchase price of the domain |
| currency | purchase\_price\_currency | 1 | string |  | Currency of the purchase price |

In addition, the domain object must be extended as follows.

```
"extensions": {
   "domainBuyExtensions": {
      "amount": "9.0",
      "currency": "EUR"
 }
  
```

```
		<domain>
            <!-- Domain data .. ->
			<extension>
				<purchase_price>10.0</purchase_price>
				<purchase_price_currency>EUR</purchase_price_currency>
			</extension>
		</domain>
```