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

# Authentication

### Authentication

The API uses OAuth 2.0 Client Credentials. You will need a `CLIENT_ID` and `CLIENT_SECRET`.

The generated access token must be included in every request to the Search API.

The access token is valid for 2 hours. Clients should reuse the same token for multiple requests until it expires, rather than requesting a new token for each call. When the token expires, request a new one using the same client credentials.

#### Token Endpoint

```
POST https://api.ae.pex.com/oauth2/token
```

#### Authentication Method

* Auth: HTTP Basic Auth
* Body: `grant_type=client_credentials`

#### Examples

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

```python
import requests

CLIENT_ID = "YOUR_CLIENT_ID"
CLIENT_SECRET = "YOUR_CLIENT_SECRET"

response = requests.post(
    "https://api.ae.pex.com/oauth2/token",
    auth=(CLIENT_ID, CLIENT_SECRET),
    data={
        "grant_type": "client_credentials",
    },
)

response.raise_for_status()

access_token = response.json()["access_token"]

print(access_token)
```

{% endtab %}

{% tab title="Bash" %}

```bash
CLIENT_ID="YOUR_CLIENT_ID"
CLIENT_SECRET="YOUR_CLIENT_SECRET"

ACCESS_TOKEN=$(curl -s \
  -u "${CLIENT_ID}:${CLIENT_SECRET}" \
  -d "grant_type=client_credentials" \
  "https://api.ae.pex.com/oauth2/token" | jq -r '.access_token')

echo "${ACCESS_TOKEN}"
```

{% endtab %}
{% endtabs %}

#### Response

A successful authentication request returns an OAuth access token.

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

```json
{
  "access_token": "example_access_token",
  "token_type": "Bearer",
  "expires_in": 7200
}
```

{% endtab %}
{% endtabs %}


---

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