# A4

#### Endpoint

<mark style="color:green;">`POST`</mark> `/api/v1/preview-token-A4`

> Download an SVG file to preview an A4 token output

***

**Headers**

| Name          | Value                                                                                                                       |
| ------------- | --------------------------------------------------------------------------------------------------------------------------- |
| Content-Type  | `application/json`                                                                                                          |
| Authorization | [Xyxyx API Key](/getting-started/xyxyx-api-keys.md) or [XIN](https://docs.xyxyx.pro/protocol/xyxyx/xyxyx-issuer-nodes-xins) |

***

**Body**

<table><thead><tr><th width="239">Name</th><th width="258">Type</th><th>Description</th></tr></thead><tbody><tr><td><code>tokenText</code></td><td>string</td><td>The text content that is stamped in the token output</td></tr><tr><td><code>walletPrivateKey</code></td><td>string</td><td>For authorizing wallet transaction</td></tr><tr><td><code>fontFamily</code></td><td>string (optional), defaults to <code>serif</code></td><td>Font-family that is used in the token output text</td></tr><tr><td><code>documentTitle</code></td><td>string (optional)</td><td>Document title, displayed on the top of the first page</td></tr><tr><td><code>documentSubtitle</code></td><td>string (optional)</td><td>Document subtitle, displayed below the document title</td></tr></tbody></table>

***

**Response**

{% tabs %}
{% tab title="200" %}
`Downloads SVG file.`
{% endtab %}

{% tab title="400" %}

```json
{
  "success": false,
  "status": "Failed to preview token: {error.message}"
}
```

{% endtab %}

{% tab title="401" %}

```json
{
  "success": false,
  "status": "The wallet does not own any valid Xyxyx API Key or XIN"
}
```

{% endtab %}

{% tab title="429" %}

```javascript
{
  "success": false,
  "status": "This wallet has already consumed its 24-hour request quota"
}
```

{% endtab %}
{% endtabs %}


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://developer.xyxyx.pro/api-endpoints/preview-token/a4.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.