Get alert related machine information API

Applies to:

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If you are a US Government customer, please use the URIs listed in Microsoft Defender for Endpoint for US Government customers.


For better performance, you can use server closer to your geo location:


API description

Retrieves Device related to a specific alert.


  1. You can query on alerts last updated according to your configured retention period.
  2. Rate limitations for this API are 100 calls per minute and 1500 calls per hour.


One of the following permissions is required to call this API. To learn more, including how to choose permissions, see Use Microsoft Defender for Endpoint APIs

Permission type Permission Permission display name
Application Machine.Read.All 'Read all machine information'
Application Machine.ReadWrite.All 'Read and write all machine information'
Delegated (work or school account) Machine.Read 'Read machine information'
Delegated (work or school account) Machine.ReadWrite 'Read and write machine information'


When obtaining a token using user credentials:

  • The user needs to have at least the following role permission: 'View Data' (See Create and manage roles for more information)
  • The user needs to have access to the device associated with the alert, based on device group settings (See Create and manage device groups for more information)

Device group creation is supported in Defender for Endpoint Plan 1 and Plan 2.

HTTP request

GET /api/alerts/{id}/machine

Request headers

Name Type Description
Authorization String Bearer {token}. Required.

Request body



If successful and alert and device exist - 200 OK. If alert not found or device not found - 404 Not Found.


Request example

Here is an example of the request.


Response example

Here is an example of the response.

    "id": "1e5bc9d7e413ddd7902c2932e418702b84d0cc07",
    "computerDnsName": "",
    "firstSeen": "2018-08-02T14:55:03.7791856Z",
    "lastSeen": "2021-01-25T07:27:36.052313Z",
    "osPlatform": "Windows10" "Windows11", 
    "osProcessor": "x64",
    "version": "1901",
    "lastIpAddress": "",
    "lastExternalIpAddress": "",
    "osBuild": 19042,
    "healthStatus": "Active",
    "deviceValue": "Normal",
    "rbacGroupName": "The-A-Team",
    "riskScore": "Low",
    "exposureLevel": "Low",
    "aadDeviceId": "fd2e4d29-7072-4195-aaa5-1af139b78028",
    "machineTags": [
    "ipAddresses": [
            "ipAddress": "",
            "macAddress": "8CEC4B897E73",
            "operationalStatus": "Up"
            "ipAddress": "2a01:110:68:4:59e4:3916:3b3e:4f96",
            "macAddress": "8CEC4B897E73",
            "operationalStatus": "Up"


Do you want to learn more? Engage with the Microsoft Security community in our Tech Community: Microsoft Defender for Endpoint Tech Community.