Use the API properly

1. 1. Sign in on /developers.
2. 2. Create a developer API key.
3. 3. Register the real Roblox place ID that will use the key.
4. 4. Send the key and placeId on every request.
5. 5. Cache results in your game instead of asking every frame.

• Your key is tied to your site account.
• Your requests must include a placeId that is registered on that key.
• Browser/JS requests use the x-sab-api-key header.
• Roblox endpoints also allow ?key=... because header handling is annoying there.
• Do not put the key in a LocalScript. Keep it in server code only.

const response = await fetch(
  "https://sabexistcount.vercel.app/api/v1/exists/noobini-pizzanini?placeId=YOUR_PLACE_ID",
  {
    headers: {
      "x-sab-api-key": "YOUR_API_KEY"
    }
  }
);

const data = await response.json();
console.log(data.item.name, data.item.exists, data.item.rarity);

Use this in a server Script. Do not expose your API key to clients. Pull once, store the decoded JSON, then update on a timer like every 30 to 120 seconds depending on how live you want the board to feel.

local HttpService = game:GetService("HttpService")

local API_KEY = "YOUR_API_KEY"
local PLACE_ID = tostring(game.PlaceId)
local url = "https://sabexistcount.vercel.app/api/v1/roblox/exists?limit=500&placeId=" .. PLACE_ID .. "&key=" .. HttpService:UrlEncode(API_KEY)

local response = HttpService:RequestAsync({
  Url = url,
  Method = "GET"
})

local data = HttpService:JSONDecode(response.Body)
if data.ok then
  for _, item in ipairs(data.items) do
    print(item.name, item.exists or "Not Known")
  end
else
  warn(data.error, data.message)
end

• Do not call the list endpoint per player join if the server already has a fresh copy.
• Use one server cache table and refresh it on a timer.
• For a single brainrot page, call the single slug endpoint instead of pulling all 500 rows.
• Use the Roblox list endpoint only when you truly need the full table.
• Use limit and search filters to keep payloads smaller.
• If you show estimates, label them as estimates. Do not present them as official live game data.
• Value fields are optional. Check for item.value before reading LGC, Robux, or market data.

Free keys get 60/min + 2,500/day. Supporter-linked keys get 600/min + 25,000/day. Advanced fields like LGC value, Robux index, Eldorado Garama sample, Roblox image asset IDs, mutations, traits, and source metadata are available on both tiers. When a key goes over limit, the API intentionally waits about 5 seconds and then returns 429.

Exact fields can grow over time, but a normal single-brainrot response looks like this:

{
  "ok": true,
  "item": {
    "name": "Noobini Pizzanini",
    "slug": "noobini-pizzanini",
    "exists": 431000000,
    "officialExistsKnown": true,
    "estimated": false,
    "rarity": "Common",
    "value": {
      "source": "SabrValues",
      "lgc": 0.0001,
      "formattedLgc": "0.0001 LGC",
      "estimatedRobux": 0.0117,
      "formattedEstimatedRobux": "~0.01 Robux",
      "market": {
        "source": "Eldorado",
        "itemName": "Garama and Madundung",
        "formattedAverage": "€1.71"
      }
    },
    "imageUrl": "...",
    "robloxImage": "rbxassetid://...",
    "mutations": [],
    "traits": [],
    "source": {
      "module": "Module:Existing/Common",
      "updatedAt": "2026-05-27T12:34:56Z"
    }
  }
}