curl --request GET \
  --url https://api.interchange.io/api/v2/buyer/campaigns/{campaignId}/creatives/{creativeId} \
  --header 'Authorization: Bearer <token>'

{
  "creative_id": "<string>",
  "name": "<string>",
  "assets": [
    {
      "asset_id": "<string>",
      "name": "<string>",
      "original_filename": "<string>",
      "content_type": "<string>",
      "file_size": 0,
      "public_url": "<string>",
      "created_at": "2023-11-07T05:31:56Z",
      "slot_asset_id": "<string>",
      "asset_control": {
        "locked_asset": true,
        "can_transform": true,
        "preservation_notes": "<string>",
        "source_asset_id": "<string>",
        "rendition_asset_id": "<string>"
      },
      "width": 123,
      "height": 123,
      "warnings": [
        {
          "message": "<string>"
        }
      ]
    }
  ],
  "created_at": "2023-11-07T05:31:56Z",
  "updated_at": "2023-11-07T05:31:56Z",
  "message": "<string>",
  "brand_domain": "<string>",
  "template_id": "<string>",
  "format_id": {
    "id": "<string>",
    "agent_url": "<string>",
    "width": 123,
    "height": 123,
    "duration_ms": 123
  },
  "format_kind": "<string>",
  "format_option_ref": {
    "scope": "publisher",
    "publisher_domain": "<string>",
    "format_option_id": "<string>"
  },
  "requires_upgrade": true,
  "industry_identifiers": [
    {
      "value": "<string>"
    }
  ],
  "target_format_ids": [
    {
      "id": "<string>",
      "agent_url": "<string>",
      "width": 123,
      "height": 123,
      "duration_ms": 123
    }
  ],
  "preview_url": "<string>",
  "carousel_cards": [
    {
      "card_index": 4503599627370495,
      "media_asset_id": "<string>",
      "headline": "<string>",
      "description": "<string>",
      "cta": "<string>",
      "landing_page_url": "<string>",
      "platform_extensions": [
        {}
      ]
    }
  ],
  "html_processing": {
    "rewritten_refs": [
      {
        "original": "<string>",
        "cdn_url": "<string>"
      }
    ],
    "unresolved_refs": [
      "<string>"
    ],
    "inserted_macros": [
      "<string>"
    ],
    "processed_html": "<string>",
    "processed_html_url": "<string>"
  },
  "auto_detected_template": {
    "template_id": "<string>",
    "template_name": "<string>"
  },
  "creative_manifest": "<unknown>",
  "sync_status": {
    "synced": true,
    "agent_count": 0,
    "last_synced_at": "2023-11-07T05:31:56Z"
  },
  "tracking": {
    "supported_macros": [
      "<string>"
    ],
    "impression_tracker_url": "<string>",
    "click_tracker_url": "<string>"
  },
  "campaign_id": "<string>",
  "brand_agent_id": "<string>",
  "frequencyCaps": [
    {
      "max_impressions": 3,
      "window": {
        "interval": 2,
        "unit": "seconds"
      },
      "id": "12345",
      "targetId": "camp_abc123",
      "createdAt": "<string>",
      "updatedAt": "<string>",
      "archivedAt": "<string>"
    }
  ],
  "already_exists": true,
  "ignored_files": 4503599627370495
}