Trying to access Microsoft Cloud PKI beta API via CURL and failing with "unknown" error

Hi All,

I am trying to query Microsoft Cloud PKI beta APIs via CURL (7.57.0) and failing. I have setup Cloud PKI properly. I can use the Microsoft Graph Explorer to query the cloud pki but not via CURL from my machine. I can get auth token (via CURL) but when I hit the URL I get unknown error e.g.

curl GET https://graph.microsoft.com/beta/deviceManagement/cloudCertificationAuthority ^
More? -H "Authorization: Bearer eyJ0eXAbvbAKw" ^
More? -H "Accept: application/json"
curl: (6) Could not resolve host: GET
{"error":{"code":"UnknownError","message":"","innerError":{"date":"2025-08-07T11:56:35","request-id":"0b807a49-3ce3-4e2f-9e07-695928635eb1","client-request-id":"0b807a49-3ce3-4e2f-9e07-695928635eb1"}}}

I have registered an App with APPLICATION level permission hence user is not required to login. In permissions I have given:

• DeviceManagementCloudCA.Read.All
• DeviceManagementConfiguration.Read.All
• DeviceManagementManagedDevices.Read.All

With the auth token, I can query devices API without any issue i.e. https://graph.microsoft.com/beta/deviceManagement/deviceConfigurations

Is that the APPLICATION level permission doesn't work with Cloud PK Beta APIs or am I making some mistake?