# Scan a Credential

* [Request Parameters](https://docs.seam.co/latest/~/revisions/DFdrUdS2jQOnbJTNDT5a/api/acs/encoders/..#request-parameters)
* [Response](https://docs.seam.co/latest/~/revisions/DFdrUdS2jQOnbJTNDT5a/api/acs/encoders/..#response)
* [Examples](https://docs.seam.co/latest/~/revisions/DFdrUdS2jQOnbJTNDT5a/api/acs/encoders/..#examples)

Scans an encoded [acs\_credential](https://docs.seam.co/latest/~/revisions/DFdrUdS2jQOnbJTNDT5a/capability-guides/access-systems/managing-credentials) from a plastic card placed on the specified [encoder](https://docs.seam.co/latest/~/revisions/DFdrUdS2jQOnbJTNDT5a/capability-guides/access-systems/working-with-card-encoders-and-scanners).

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

```
POST /acs/encoders/scan_credential ⇒ { action_attempt }
```

{% endtab %}
{% endtabs %}

<details>

<summary>Authentication Methods</summary>

* API key
* Personal access token\
  Must also include the `seam-workspace` header in the request.

To learn more, see [Authentication](https://docs.seam.co/latest/api/authentication).

</details>

## Request Parameters

**`acs_encoder_id`** *String* (Required)

ID of the encoder to use for the scan.

***

## Response

[action\_attempt](https://docs.seam.co/latest/~/revisions/DFdrUdS2jQOnbJTNDT5a/api/acs/encoders)

**`SCAN_CREDENTIAL`**

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

```json
{
  action_attempt_id: [example value],
  action_type: [example value],
  error: [example value],
  result: [example value],
  status: [example value]
}
```

{% endtab %}
{% endtabs %}