curl "https://api.telzino.com/v1/resellers/reseller-123/organizations" \
  -H "Authorization: Bearer YOUR_ACCESS_TOKEN"

{
  "data": [
    {
      "id": "org-123e4567-e89b-12d3-a456-426614174000",
      "reseller_id": "reseller-123",
      "name": "Acme Solar",
      "external_id": "external-org-12345",
      "created_at": "2024-01-15T10:30:00Z"
    }
  ]
}