Hi @Gary Allen • Thank you for reaching out.
The https://api.myapplications.microsoft.com/api API endpoints are NOT intended to be used by 3rd party app integrations.
As of now, you can use the below graph call to list Azure AD applications where app roles are assigned to the signed-in user. However, the results of this call won't include Office 365 applications.
https://graph.microsoft.com/v1.0/me/appRoleAssignments?$select=resourceDisplayName
I would suggest posting feedback regarding this at the User Voice Portal, which is monitored by the Azure Product Groups for feature enhancements.
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