curl --request GET \
  --url https://api.blockscout.com/{chain_id}/stats-service/api/v1/pages/multichain/main \
  --header 'Authorization: Bearer <token>'

{
  "new_txns_multichain_window": {
    "chart": [
      {
        "date": "<string>",
        "date_to": "<string>",
        "is_approximate": true,
        "value": "<string>"
      }
    ],
    "info": {
      "description": "<string>",
      "id": "<string>",
      "resolutions": [
        "<string>"
      ],
      "title": "<string>",
      "units": "<string>"
    }
  },
  "total_multichain_addresses": {
    "description": "<string>",
    "id": "<string>",
    "title": "<string>",
    "units": "<string>",
    "value": "<string>"
  },
  "total_multichain_txns": {
    "description": "<string>",
    "id": "<string>",
    "title": "<string>",
    "units": "<string>",
    "value": "<string>"
  },
  "yesterday_txns_multichain": {
    "description": "<string>",
    "id": "<string>",
    "title": "<string>",
    "units": "<string>",
    "value": "<string>"
  }
}