{
  "schema_version": "0.1",
  "id": "us-burger-chains",
  "name": "List of US burger chains",
  "url": "https://onelineindex.com/lists/us-burger-chains/",
  "scope": "Brands classified as Burgers in this index. Some also serve chicken, breakfast or desserts; this list groups them by their main category.",
  "market": "US",
  "category": "Burgers",
  "purchases_enabled": false,
  "daily_observations_url": "https://onelineindex.com/api/daily",
  "records": [
    {
      "id": "burger-king",
      "type": "RestaurantChain",
      "name": "Burger King",
      "market": "US",
      "category": "Burgers",
      "description": "Flame-grilled burgers, including the Whopper.",
      "official_url": "https://www.bk.com/",
      "sources": [
        {
          "url": "https://www.rbi.com/English/brands/default.aspx",
          "label": "Official parent-company brand profile",
          "reviewed_on": "2026-09-06"
        }
      ],
      "fan_message": null,
      "prototype": {
        "purchases_enabled": false,
        "starting_price_usd": "1.00"
      }
    },
    {
      "id": "culvers",
      "type": "RestaurantChain",
      "name": "Culver's",
      "market": "US",
      "category": "Burgers",
      "description": "ButterBurgers and frozen custard.",
      "official_url": "https://www.culvers.com/",
      "sources": [
        {
          "url": "https://www.culvers.com/",
          "label": "Official menu and website",
          "reviewed_on": "2026-09-06"
        }
      ],
      "fan_message": null,
      "prototype": {
        "purchases_enabled": false,
        "starting_price_usd": "1.00"
      }
    },
    {
      "id": "five-guys",
      "type": "RestaurantChain",
      "name": "Five Guys",
      "market": "US",
      "category": "Burgers",
      "description": "Burgers, fries, hot dogs and milkshakes.",
      "official_url": "https://www.fiveguys.com/",
      "sources": [
        {
          "url": "https://www.fiveguys.com/our-food/",
          "label": "Official food guide",
          "reviewed_on": "2026-09-06"
        }
      ],
      "fan_message": null,
      "prototype": {
        "purchases_enabled": false,
        "starting_price_usd": "1.00"
      }
    },
    {
      "id": "in-n-out",
      "type": "RestaurantChain",
      "name": "In-N-Out Burger",
      "market": "US",
      "category": "Burgers",
      "description": "Burgers, fries and shakes.",
      "official_url": "https://www.in-n-out.com/",
      "sources": [
        {
          "url": "https://www.in-n-out.com/menu",
          "label": "Official menu",
          "reviewed_on": "2026-09-06"
        }
      ],
      "fan_message": null,
      "prototype": {
        "purchases_enabled": false,
        "starting_price_usd": "1.00"
      }
    },
    {
      "id": "mcdonalds",
      "type": "RestaurantChain",
      "name": "McDonald's",
      "market": "US",
      "category": "Burgers",
      "description": "Burgers, breakfast, chicken and coffee.",
      "official_url": "https://www.mcdonalds.com/us/en-us.html",
      "sources": [
        {
          "url": "https://www.mcdonalds.com/us/en-us/full-menu.html",
          "label": "Official US menu",
          "reviewed_on": "2026-09-06"
        }
      ],
      "fan_message": null,
      "prototype": {
        "purchases_enabled": false,
        "starting_price_usd": "1.00"
      }
    },
    {
      "id": "shake-shack",
      "type": "RestaurantChain",
      "name": "Shake Shack",
      "market": "US",
      "category": "Burgers",
      "description": "Burgers, chicken sandwiches and fries.",
      "official_url": "https://shakeshack.com/",
      "sources": [
        {
          "url": "https://shakeshack.com/blog/our-food/shake-shack-hits-the-road-with-a-new-west-coast-burger-menu",
          "label": "Official food announcement",
          "reviewed_on": "2026-09-06"
        }
      ],
      "fan_message": null,
      "prototype": {
        "purchases_enabled": false,
        "starting_price_usd": "1.00"
      }
    },
    {
      "id": "sonic",
      "type": "RestaurantChain",
      "name": "Sonic Drive-In",
      "market": "US",
      "category": "Burgers",
      "description": "Burgers, tots and flavored drinks.",
      "official_url": "https://www.sonicdrivein.com/",
      "sources": [
        {
          "url": "https://www.sonicdrivein.com/sitemap/",
          "label": "Official menu directory",
          "reviewed_on": "2026-09-06"
        }
      ],
      "fan_message": null,
      "prototype": {
        "purchases_enabled": false,
        "starting_price_usd": "1.00"
      }
    },
    {
      "id": "wendys",
      "type": "RestaurantChain",
      "name": "Wendy's",
      "market": "US",
      "category": "Burgers",
      "description": "Hamburgers, chicken sandwiches and Frosty desserts.",
      "official_url": "https://www.wendys.com/",
      "sources": [
        {
          "url": "https://www.wendys.com/site-map",
          "label": "Official menu directory",
          "reviewed_on": "2026-09-06"
        }
      ],
      "fan_message": null,
      "prototype": {
        "purchases_enabled": false,
        "starting_price_usd": "1.00"
      }
    }
  ]
}