curl --request GET \
  --url https://api.hubapi.com/content/api/v2/layouts

{
  "limit": 2,
  "offset": 0,
  "total": 46,
  "total_count": 46,
  "objects": [
    {
      "attached_amp_stylesheet": 0,
      "attached_js": [],
      "attached_stylesheets": [],
      "author": "marketplaceteam@hubspot.com",
      "author_at": 1548263624833,
      "body": {
        "enable_domain_stylesheets": false,
        "include_default_custom_css": false,
        "folder": "Default_Search",
        "attached_stylesheets": [],
        "cdn_purge_embargo_time": 1548263924820,
        "attached_js": [],
        "custom_head": "",
        "attached_amp_stylesheet": 0,
        "body_css_id": null,
        "custom_footer": "",
        "body_class": "",
        "body_css": "",
        "builtin": false,
        "purchased": false,
        "generator": null,
        "generated_template_id": 5857301778,
        "marketplace_good_id": 263737,
        "cloned_from": null,
        "body_editable": false,
        "content_tags": [
          {
            "name": "SINGLE_COLUMN",
            "source": "MARKETPLACE"
          },
          {
            "name": "DRAG_AND_DROP",
            "source": "MARKETPLACE"
          },
          {
            "name": "OTHER_INDUSTRY",
            "source": "MARKETPLACE"
          },
          {
            "name": "HIDDEN",
            "source": "MARKETPLACE"
          }
        ],
        "last_edit_session_id": null,
        "last_edit_update_id": null,
        "has_user_changes": true,
        "marketplace_delivery_id": 25843497,
        "is_read_only": true
      },
      "body_class": "",
      "body_css": "",
      "body_editable": false,
      "builtin": false,
      "category": 1,
      "category_id": 1,
      "cdn_purge_embargo_time": 1548263924820,
      "content_tags": [
        {
          "name": "SINGLE_COLUMN",
          "source": "MARKETPLACE"
        },
        {
          "name": "DRAG_AND_DROP",
          "source": "MARKETPLACE"
        },
        {
          "name": "OTHER_INDUSTRY",
          "source": "MARKETPLACE"
        },
        {
          "name": "HIDDEN",
          "source": "MARKETPLACE"
        }
      ],
      "created": 1520438256581,
      "custom_footer": "",
      "custom_head": "",
      "default": false,
      "deleted_at": 0,
      "enable_domain_stylesheets": false,
      "folder": "Default_Search",
      "folder_id": 5500358806,
      "generated_template_id": 5857301778,
      "host_template_types": [
        "ANY"
      ],
      "id": 5857301776,
      "include_default_custom_css": false,
      "is_available_for_new_content": true,
      "is_read_only": true,
      "label": "Site Search Results Page",
      "languages": [],
      "marketplace_delivery_id": 25843497,
      "marketplace_good_id": 263737,
      "meta": {
        "hasBufferedChanges": false
      },
      "path": "generated_layouts/5626542347.html",
      "portal_id": 62515,
      "purchased": false,
      "template_type": 4,
      "updated": 1548263624833,
      "updated_by": "marketplaceteam@hubspot.com",
      "updated_by_id": 2411823
    }
  ]
}