> ## Documentation Index
> Fetch the complete documentation index at: https://www.marqeta.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Retrieve client access token

> To retrieve application and card information using a client access token, send a GET request to the /users/auth/clientaccesstoken/{token} endpoint.

GET/users/auth/clientaccesstoken/\{token}

To retrieve application and card information using a client access token, send a `GET` request to the `/users/auth/clientaccesstoken/{token}` endpoint.

## URL path parameters

| Fields | Description |
| - | - |
| token string  Required | Client access token. **Allowable Values:**  Existing client access token |

## URL query parameters

| Fields | Description |
| - | - |
| application\_token string  Optional | Unique identifier of the `application` object. **Allowable Values:**  Existing application token |

## Response body

| Fields | Description |
| - | - |
| application object  Conditionally returned | Contains client application information. **Allowable Values:**  Existing `application` object |
| application.**access\_code** string  Conditionally returned | Access code of the client application. **Allowable Values:**  255 char max |
| application.**assets\_url** string  Conditionally returned | URL of the client application assets. **Allowable Values:**  255 char max |
| application.**client\_api\_base\_url** string  Conditionally returned | Base URL of the client API. **Allowable Values:**  255 char max |
| application.**environment** string  Conditionally returned | Client application's environment. **Allowable Values:**  255 char max |
| application.**program** string  Conditionally returned | Name of the program on the Marqeta platform. **Allowable Values:**  255 char max |
| application.**program\_short\_code** string  Conditionally returned | Short code of the program on the Marqeta platform. **Allowable Values:**  255 char max |
| application.**token** string  Conditionally returned | Unique identifier of the `application` object. **Allowable Values:**  36 char max |
| card\_token string  Conditionally returned | Unique identifier of the card whose sensitive information you want to display. **Allowable Values:**  Existing card token |
| created datetime  Conditionally returned | Date and time when the client access token was created, in UTC. **Allowable Values:**  datetime **Format:** yyyy-MM-ddThh:mm:ssZ |
| expires datetime  Conditionally returned | Date and time when the client access token expires, in UTC. **Allowable Values:**  datetime **Format:** yyyy-MM-ddThh:mm:ssZ |
| token string  Conditionally returned | Value of the client access token to redeem when displaying sensitive card data. **Allowable Values:**  Existing client access token |

## Sample response body

```json JSON lines wrap theme={null}
{
  "created": "2022-07-29T12:00:00Z",
  "expires": "2022-07-29T12:05:00Z",
  "token": "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"
}
```


## Related topics

- [User Authentication Overview](https://www.marqeta.com/docs/core-api/users/user-authentication.md)
- [Users Overview](https://www.marqeta.com/docs/core-api/users.md)
- [Create client access token](https://www.marqeta.com/docs/core-api/users/user-authentication/create-client-access-token.md)
- [Retrieve details of the current admin access token](https://www.marqeta.com/docs/core-api/self-service-credentials/retrieve-details-current-admin-access-token.md)
- [Generate UX Toolkit OAuth access token](https://www.marqeta.com/docs/core-api/uxt-sdk/generate-ux-toolkit-oauth-access-token.md)