Get YouTube audience demographics

{
  "success": true,
  "accountId": "64e1a2b3c4d5e6f7a8b9c0d1",
  "platform": "youtube",
  "demographics": {
    "age": [
      {
        "dimension": "25-34",
        "value": 28.5
      },
      {
        "dimension": "18-24",
        "value": 22.1
      }
    ],
    "gender": [
      {
        "dimension": "male",
        "value": 62.3
      },
      {
        "dimension": "female",
        "value": 35.8
      }
    ],
    "country": [
      {
        "dimension": "US",
        "value": 12000
      },
      {
        "dimension": "GB",
        "value": 3500
      }
    ]
  },
  "dateRange": {
    "startDate": "2026-01-01",
    "endDate": "2026-03-31"
  },
  "note": "Age/gender values are viewer percentages (0-100). Country values are view counts. Data based on signed-in viewers only, with 2-3 day delay."
}

{
  "error": "string"
}

{
  "error": "Unauthorized"
}

{
  "error": "Analytics add-on required",
  "code": "analytics_addon_required"
}

{
  "error": "Access denied to this account"
}

{
  "error": "Account not found"
}

{
  "success": false,
  "error": "string",
  "code": "youtube_analytics_scope_missing",
  "scopeStatus": {
    "hasAnalyticsScope": false,
    "requiresReauthorization": true,
    "reauthorizeUrl": "string"
  }
}