> For the complete documentation index, see [llms.txt](https://developer.expertfile.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developer.expertfile.com/reference/api-reference/authentication.md).

# Authentication

## Create token.

<mark style="color:green;">`POST`</mark> `https://public-api.expertfile.com/oauth/token`

You can find your Client ID and Client Secret in Settings->Integrations inside ExpertFile dashboard. The url is: <https://expertfile.com/dashboard/settings/integrations>.

<figure><img src="/files/XIaA0pdcpP81G6UdNDHe" alt=""><figcaption></figcaption></figure>

#### Response

{% tabs %}
{% tab title="200" %}

```json
  data: {
    accessToken: '<ACCESS CODE>',
    accessTokenExpiresAt: '2024-06-24T16:10:43.457Z',
    client: '<CLIENT ID>',
    user: <ORG ID>,
    scope: true
  },
  success: true
}
```

{% endtab %}
{% endtabs %}

#### Code

{% tabs %}
{% tab title="Node" %}

```javascript
const data = new URLSearchParams();

data.append('client_id', '<YOUR CLIENT ID>');
data.append('client_secret', '<YOUR CLIENT SECRET>');
data.append('grant_type', 'client_credentials');

fetch('https://public-api.expertfile.com/v2/oauth/token', {
    method: 'POST',
    headers: {
        'Content-Type': 'application/x-www-form-urlencoded'
    },
    body: data
})
.then(response => response.json())
.then(json => {
    const { success, data } = json

    if (success) {
        const { accessToken, accessTokenExpiresAt } = data
        console.log('Token used to sign requests for data', accessToken)
    }

})
.catch(error => console.error(error));
```

{% endtab %}

{% tab title="PHP" %}

```php
$client_id = urlencode('<YOUR CLIENT ID>');
$client_secret = urlencode('<YOUR CLIENT SECRET>');
$grant_type =  'client_credentials';

$params =
    [
        'client_id' => $client_id,
        'client_secret' => $client_secret,
        'grant_type' => $grant_type
    ];

$url = 'https://public-api.expertfile.com/v2/oauth/token';

$ch = curl_init($url);
curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: application/x-www-form-urlencoded'));
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($params));

$response = curl_exec($ch);
$json = json_decode($response);

if ($json->success) {
    var_dump('Token used to sign requests for data', $json->data->accessToken);
}

curl_close($ch);
```

{% endtab %}

{% tab title="Curl" %}

```
curl -X POST \
  https://public-api.expertfile.com/v2/oauth/token \
  -H 'cache-control: no-cache' \
  -H 'content-type: application/x-www-form-urlencoded' \
  -d 'client_id=<YOUR_ID>&client_secret=<YOUR_SECRET>&grant_type=client_credentials'
```

{% endtab %}
{% endtabs %}

{% hint style="info" %}
**Good to know:** You'll be required to sign all requests for data using the token received in this response. Tokens are valid for 30 days, so you may want to store the token for reuse and avoid making repeat calls for a new token.
{% endhint %}