# Quick Start

<table><thead><tr><th width="147">API Version</th><th width="125.33984375">Stage</th><th width="129" data-type="checkbox">Shorten URLs</th><th width="194" data-type="checkbox">Password Protection</th><th width="202" data-type="checkbox">Add Custom Domain</th><th width="87" data-type="checkbox">Count</th><th width="192" data-type="checkbox">Check Domain DNS</th><th data-type="checkbox">Cache</th></tr></thead><tbody><tr><td>v6</td><td>Latest</td><td>true</td><td>true</td><td>true</td><td>true</td><td>true</td><td>true</td></tr><tr><td>v5</td><td>Deprecated</td><td>true</td><td>true</td><td>true</td><td>true</td><td>true</td><td>false</td></tr><tr><td>v4</td><td>Deprecated</td><td>true</td><td>true</td><td>true</td><td>true</td><td>true</td><td>false</td></tr><tr><td>v3</td><td>Deprecated</td><td>true</td><td>true</td><td>true</td><td>true</td><td>false</td><td>false</td></tr><tr><td>v2</td><td>Deprecated</td><td>true</td><td>true</td><td>true</td><td>false</td><td>false</td><td>false</td></tr><tr><td>v1</td><td>Beta</td><td>true</td><td>true</td><td>false</td><td>false</td><td>false</td><td>false</td></tr><tr><td>v0</td><td>Alpha</td><td>true</td><td>false</td><td>false</td><td>false</td><td>false</td><td>false</td></tr></tbody></table>

<details>

<summary>Shorten Multiple URLs<br>POST - <code>/api/{API Version}/shorten</code></summary>

```json
body: {
    urls: urls,                // string
    password: password         // string
}
```

</details>

{% hint style="info" %}
Add Custom Domain only available after v2.
{% endhint %}

<details>

<summary>Add Custom Domain<br>GET -<code>/api/{API Version}/domain?add={domain}</code></summary>

Status:

````javascript
  [ 200 ] Domain/Subdomain added successfully. (Further action: use CNAME and point to ```javascript
  cname.vercel-dns.com.
````

```javascript
[ 403 ] You are not authorized to add this domain.
```

```javascript
[ 409 ] This domain/subdomain is already taken. Please remove it from your Vercel account and try again.
```

</details>


---

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```
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```

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