Microsoft Defender XDR | Operate As Docs

Website: microsoft.com
Connects by: Signing in with Microsoft
Category: Developer tools
Part of: Microsoft
Tools: 174

Service	Key	Base URL
Microsoft Defender XDR	`microsoft-defender`	`https://graph.microsoft.com/v1.0`

Connecting

Your client presses Connect on their link and approves on Microsoft's own screen. Operate As never sees their password.

Check they're connected

curl https://api.operate.as/v1/me/clients \
  -H "Authorization: Bearer $OPERATE_AS_API_KEY"

curl https://api.operate.as/v1/me/clients \  -H "Authorization: Bearer $OPERATE_AS_API_KEY"

Response

[
  {
    "id": "6f1c2a7e-...",
    "name": "Miller Dental",
    "services": [
      "microsoft-defender"
    ]
  }
]

[  {    "id": "6f1c2a7e-...",    "name": "Miller Dental",    "services": [      "microsoft-defender"    ]  }]

Permissions

What the client reads	Permission it asks for
See your organization's security alerts	`SecurityAlert.Read.All`
See your organization's security incidents	`SecurityIncident.Read.All`
See your organization's secure scores and security events	`SecurityEvents.Read.All`

Tools

Install Microsoft Defender XDR's typed package for your language:

pip install operate-as-microsoft-defender

pip install operate-as-microsoft-defender

Run microsoft-defender.get_count_additional_sources_f0d1

curl -X POST https://api.operate.as/v1/actions/microsoft-defender.get_count_additional_sources_f0d1 \
  -H "Authorization: Bearer $OPERATE_AS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "clientId": "6f1c2a7e-...",
    "input": {
      "ediscovery_case_id": "<ediscovery_case_id>",
      "ediscovery_search_id": "<ediscovery_search_id>"
    }
  }'

curl -X POST https://api.operate.as/v1/actions/microsoft-defender.get_count_additional_sources_f0d1 \  -H "Authorization: Bearer $OPERATE_AS_API_KEY" \  -H "Content-Type: application/json" \  -d '{    "clientId": "6f1c2a7e-...",    "input": {      "ediscovery_case_id": "<ediscovery_case_id>",      "ediscovery_search_id": "<ediscovery_search_id>"    }  }'

Shows the required inputs. Every input, with its JSON Schema: GET /v1/actions/microsoft-defender.get_count_additional_sources_f0d1

Response

{
  "status": 200,
  "data": {
    "…": "the service's own response"
  },
  "encoding": "json"
}

{  "status": 200,  "data": {    "…": "the service's own response"  },  "encoding": "json"}

Pass-through

Paths continue from https://graph.microsoft.com/v1.0. Your Operate As key goes in Authorization; the client's access is added for you.

See Pass-through requests for the full request and response format.

Call any endpoint

curl "https://api.operate.as/v1/clients/6f1c2a7e-.../microsoft-defender/..." \
  -H "Authorization: Bearer $OPERATE_AS_API_KEY"

curl "https://api.operate.as/v1/clients/6f1c2a7e-.../microsoft-defender/..." \  -H "Authorization: Bearer $OPERATE_AS_API_KEY"

Response

{
  "status": 200,
  "data": {
    "…": "the service's own response"
  },
  "encoding": "json"
}

{  "status": 200,  "data": {    "…": "the service's own response"  },  "encoding": "json"}

When access ends

Operate As renews the sign-in before it runs out and checks it daily. If Microsoft refuses to renew it, the service shows Expired, you're alerted, and your client reconnects from the same link.

See Keeping access alive and Removing access.

Calls answer

HTTP/1.1 409 Conflict
Content-Type: application/json

{
  "detail": "Miller Dental's Microsoft access ended. Send them their link to reconnect."
}

HTTP/1.1 409 ConflictContent-Type: application/json{  "detail": "Miller Dental's Microsoft access ended. Send them their link to reconnect."}

Your webhook receives

{
  "id": "evt_3f9a1c…",
  "type": "connection.expired",
  "createdAt": "2026-10-16T08:00:00+00:00",
  "data": {
    "clientId": "6f1c2a7e-...",
    "clientName": "Miller Dental",
    "provider": "microsoft",
    "services": [
      "microsoft-defender"
    ],
    "reconnectUrl": "https://…"
  }
}

{  "id": "evt_3f9a1c…",  "type": "connection.expired",  "createdAt": "2026-10-16T08:00:00+00:00",  "data": {    "clientId": "6f1c2a7e-...",    "clientName": "Miller Dental",    "provider": "microsoft",    "services": [      "microsoft-defender"    ],    "reconnectUrl": "https://…"  }}