---
title: Initiate Device Authentication (PingID Desktop)
component: pingone-api
page_id: pingone-api:mfa:mfa-authentication/mfa-device-authentications/initiate-device-authentication-desktop
canonical_url: https://developer.pingidentity.com/pingone-api/mfa/mfa-authentication/mfa-device-authentications/initiate-device-authentication-desktop.html
section_ids:
  headers: Headers
  body: Body
  example-request: Example Request
  example-response: Example Response
---

# Initiate Device Authentication (PingID Desktop)

##

 

```none
POST {{authPath}}/{{envID}}/deviceAuthentications
```

Authentication with a PingID Desktop device involves a sequence of requests and responses, including interaction with the Desktop API.

This example shows the first step in this process, sending a POST request to the `deviceAuthentications` endpoint:

`POST {{authPath}}/{{envID}}/deviceAuthentications`

The only parameter provided is the user's ID.

> **Collapse: Request Model**
>
> | Property  | Type   | Required? |
> | --------- | ------ | --------- |
> | `user.id` | String | Required  |
>
> Refer to the [Device authentications data model](../mfa-device-authentications.html#device-authentications-data-model) for full property descriptions.

The response from the PingOne server contains a field called `pingIdDesktopCredentialRequestOptions`, which consists of a signed JWT.

After the JWT is received, you must send it to the Desktop API Authenticate endpoint `http://localhost:9410/authenticate`. The body of that request should just be the JWT that you received, sent as plain text. The request must also include the header Content-Type set to `application/jwt` and the header Origin set to the Relying Party ID you specified in the relevant MFA policy, for example, `https://app.pingone.eu`

The response from the desktop agent will contain an assertion JWT, which must be used in the final step of authenticating with a PingID Desktop device, [checking the assertion](check-assertion-desktop.html).

### Headers

Authorization      Bearer {{accessToken}}

Content-Type      application/json

### Body

raw ( application/json )

```json
{
    "user": {
        "id": "{{userID}}"
    }
}
```

##

### Example Request

* cURL

* C#

* Go

* HTTP

* Java

* jQuery

* NodeJS

* Python

* PHP

* Ruby

* Swift

```shell
curl --location --globoff '{{authPath}}/{{envID}}/deviceAuthentications' \
--header 'Content-Type: application/json' \
--header 'Authorization: Bearer {{accessToken}}' \
--data '{
    "user": {
        "id": "{{userID}}"
    }
}'
```

```csharp
var options = new RestClientOptions("{{authPath}}/{{envID}}/deviceAuthentications")
{
  MaxTimeout = -1,
};
var client = new RestClient(options);
var request = new RestRequest("", Method.Post);
request.AddHeader("Content-Type", "application/json");
request.AddHeader("Authorization", "Bearer {{accessToken}}");
var body = @"{" + "\n" +
@"    ""user"": {" + "\n" +
@"        ""id"": ""{{userID}}""" + "\n" +
@"    }" + "\n" +
@"}";
request.AddStringBody(body, DataFormat.Json);
RestResponse response = await client.ExecuteAsync(request);
Console.WriteLine(response.Content);
```

```golang
package main

import (
  "fmt"
  "strings"
  "net/http"
  "io"
)

func main() {

  url := "{{authPath}}/{{envID}}/deviceAuthentications"
  method := "POST"

  payload := strings.NewReader(`{
    "user": {
        "id": "{{userID}}"
    }
}`)

  client := &http.Client {
  }
  req, err := http.NewRequest(method, url, payload)

  if err != nil {
    fmt.Println(err)
    return
  }
  req.Header.Add("Content-Type", "application/json")
  req.Header.Add("Authorization", "Bearer {{accessToken}}")

  res, err := client.Do(req)
  if err != nil {
    fmt.Println(err)
    return
  }
  defer res.Body.Close()

  body, err := io.ReadAll(res.Body)
  if err != nil {
    fmt.Println(err)
    return
  }
  fmt.Println(string(body))
}
```

```http
POST /{{envID}}/deviceAuthentications HTTP/1.1
Host: {{authPath}}
Content-Type: application/json
Authorization: Bearer {{accessToken}}

{
    "user": {
        "id": "{{userID}}"
    }
}
```

```java
OkHttpClient client = new OkHttpClient().newBuilder()
  .build();
MediaType mediaType = MediaType.parse("application/json");
RequestBody body = RequestBody.create(mediaType, "{\n    \"user\": {\n        \"id\": \"{{userID}}\"\n    }\n}");
Request request = new Request.Builder()
  .url("{{authPath}}/{{envID}}/deviceAuthentications")
  .method("POST", body)
  .addHeader("Content-Type", "application/json")
  .addHeader("Authorization", "Bearer {{accessToken}}")
  .build();
Response response = client.newCall(request).execute();
```

```javascript
var settings = {
  "url": "{{authPath}}/{{envID}}/deviceAuthentications",
  "method": "POST",
  "timeout": 0,
  "headers": {
    "Content-Type": "application/json",
    "Authorization": "Bearer {{accessToken}}"
  },
  "data": JSON.stringify({
    "user": {
      "id": "{{userID}}"
    }
  }),
};

$.ajax(settings).done(function (response) {
  console.log(response);
});
```

```javascript
var request = require('request');
var options = {
  'method': 'POST',
  'url': '{{authPath}}/{{envID}}/deviceAuthentications',
  'headers': {
    'Content-Type': 'application/json',
    'Authorization': 'Bearer {{accessToken}}'
  },
  body: JSON.stringify({
    "user": {
      "id": "{{userID}}"
    }
  })

};
request(options, function (error, response) {
  if (error) throw new Error(error);
  console.log(response.body);
});
```

```python
import requests
import json

url = "{{authPath}}/{{envID}}/deviceAuthentications"

payload = json.dumps({
  "user": {
    "id": "{{userID}}"
  }
})
headers = {
  'Content-Type': 'application/json',
  'Authorization': 'Bearer {{accessToken}}'
}

response = requests.request("POST", url, headers=headers, data=payload)

print(response.text)
```

```php
<?php
require_once 'HTTP/Request2.php';
$request = new HTTP_Request2();
$request->setUrl('{{authPath}}/{{envID}}/deviceAuthentications');
$request->setMethod(HTTP_Request2::METHOD_POST);
$request->setConfig(array(
  'follow_redirects' => TRUE
));
$request->setHeader(array(
  'Content-Type' => 'application/json',
  'Authorization' => 'Bearer {{accessToken}}'
));
$request->setBody('{\n    "user": {\n        "id": "{{userID}}"\n    }\n}');
try {
  $response = $request->send();
  if ($response->getStatus() == 200) {
    echo $response->getBody();
  }
  else {
    echo 'Unexpected HTTP status: ' . $response->getStatus() . ' ' .
    $response->getReasonPhrase();
  }
}
catch(HTTP_Request2_Exception $e) {
  echo 'Error: ' . $e->getMessage();
}
```

```ruby
require "uri"
require "json"
require "net/http"

url = URI("{{authPath}}/{{envID}}/deviceAuthentications")

http = Net::HTTP.new(url.host, url.port);
request = Net::HTTP::Post.new(url)
request["Content-Type"] = "application/json"
request["Authorization"] = "Bearer {{accessToken}}"
request.body = JSON.dump({
  "user": {
    "id": "{{userID}}"
  }
})

response = http.request(request)
puts response.read_body
```

```swift
let parameters = "{\n    \"user\": {\n        \"id\": \"{{userID}}\"\n    }\n}"
let postData = parameters.data(using: .utf8)

var request = URLRequest(url: URL(string: "{{authPath}}/{{envID}}/deviceAuthentications")!,timeoutInterval: Double.infinity)
request.addValue("application/json", forHTTPHeaderField: "Content-Type")
request.addValue("Bearer {{accessToken}}", forHTTPHeaderField: "Authorization")

request.httpMethod = "POST"
request.httpBody = postData

let task = URLSession.shared.dataTask(with: request) { data, response, error in
  guard let data = data else {
    print(String(describing: error))
    return
  }
  print(String(data: data, encoding: .utf8)!)
}

task.resume()
```

### Example Response

201 Created

```json
{
    "_links": {
        "self": {
            "href": "https://auth.pingone.eu/abfba8f6-49eb-49f5-a5d9-80ad5c98f9f6/deviceAuthentications/0f1f29a9-a16d-4d7c-a653-d85a66d53440"
        },
        "device.select": {
            "href": "https://auth.pingone.eu/abfba8f6-49eb-49f5-a5d9-80ad5c98f9f6/deviceAuthentications/0f1f29a9-a16d-4d7c-a653-d85a66d53440"
        },
        "assertion.check": {
            "href": "https://auth.pingone.eu/abfba8f6-49eb-49f5-a5d9-80ad5c98f9f6/deviceAuthentications/0f1f29a9-a16d-4d7c-a653-d85a66d53440"
        }
    },
    "_embedded": {
        "devices": [
            {
                "id": "001f74e8-b024-1df0-001f-74e8b0241df0",
                "type": "PINGID_DESKTOP_GEN2",
                "status": "ACTIVE",
                "usableStatus": {
                    "status": "ENABLED"
                },
                "nickname": "PingId Desktop new 2",
                "os": {
                    "version": "15.7.3",
                    "type": "MAC"
                },
                "model": {},
                "application": {
                    "id": "941d6390-ec3a-4bf4-858a-949c47ccd36e",
                    "nativeName": "PingID Desktop",
                    "version": "1.0.0",
                    "pushSandbox": false
                },
                "rp": {
                    "id": "pingone.eu",
                    "name": "pingone.eu"
                },
                "credentialId": "68d0d592-33ea-43da-a113-44996999a593",
                "unitId": "4d764d06-6aa5-4c15-ac8c-4df655cbf867"
            },
            {
                "id": "03ed6f11-c4fc-71d8-03ed-6f11c4fc71d8",
                "type": "EMAIL",
                "status": "ACTIVE",
                "usableStatus": {
                    "status": "ENABLED"
                },
                "nickname": "Email 1",
                "email": "sh****@pingidentity.com"
            },
            {
                "id": "0783541c-a172-8d40-0783-541ca1728d40",
                "type": "PINGID_DESKTOP_GEN2",
                "status": "ACTIVE",
                "usableStatus": {
                    "status": "ENABLED"
                },
                "nickname": "Desktop Mac 1",
                "os": {
                    "version": "15.7.3",
                    "type": "MAC"
                },
                "model": {},
                "application": {
                    "id": "941d6390-ec3a-4bf4-858a-949c47ccd36e",
                    "nativeName": "PingID Desktop",
                    "version": "1.0.0",
                    "pushSandbox": false
                },
                "rp": {
                    "id": "pingone.eu",
                    "name": "pingone.eu"
                },
                "credentialId": "eb003515-06bb-4fe0-b1a1-09d98550e55f",
                "unitId": "4d764d06-6aa5-4c15-ac8c-4df655cbf867"
            }
        ],
        "blockedDevices": []
    },
    "id": "0f1f29a9-a16d-4d7c-a653-d85a66d53440",
    "environment": {
        "id": "abfba8f6-49eb-49f5-a5d9-80ad5c98f9f6"
    },
    "status": "ASSERTION_REQUIRED",
    "policy": {
        "id": "f27e5149-92e2-011a-08da-d93f80db818b"
    },
    "selectedDevice": {
        "id": "001f74e8-b024-1df0-001f-74e8b0241df0"
    },
    "user": {
        "id": "d4543f69-e508-4cc6-bd16-b61baa4b3caf"
    },
    "pingIdDesktopCredentialRequestOptions": "{{credentialRequestOptionsValue}}",
    "bypassAllowed": false,
    "createdAt": "2026-02-17T13:40:50.774Z",
    "updatedAt": "2026-02-17T13:40:51.186Z",
    "userBypassEnabled": false
}
```
