What is FSZero?

FSZero is a trading platform for classic Roblox limited items. It gives traders algorithmic, unbiased valuations driven by pure numbers, deep customizable insights into every item, a swipe-based trade feed that proposes ready-to-accept trades using your own inventory, item charts, portfolio tracking, a trade calculator, a watchlist, and an owner lookup.

It is built specifically for classic Roblox limiteds. UGC limiteds are not supported by design.

How FSZero values items

Most Roblox limited valuations are influenced by a human values team that sets prices manually. That makes them susceptible to bias, petitions, and coordinated pressure.

FSZero takes a different approach. Item values are calculated from real sale data using a configurable rolling window (default 20 sales) with manipulation filtering applied. There is no values team. There is no committee. The number you see is what the algorithm computes from real trades, with adjustable manipulation filtering thresholds and window sizes available in Advanced Mode.

The result is a valuation system that cannot be lobbied, paid off, or biased toward any particular item or trader.

What FSZero means by manipulation

Item values get distorted in two opposite directions, and FSZero filters both.

LLPs (Low List Prices). Someone sells a valuable item far below its real market value. This can be accidental (mispriced) or intentional (an attempt to crash the displayed value of an item, often to scare holders or buy cheap). LLPs drag traditional RAP down below where the item actually trades.

Projecteds. The opposite of an LLP. An item gets sold at an artificially inflated price, usually by a coordinated group attempting to pump the displayed RAP. Projecteds drag traditional RAP up above where the item actually trades.

FSZero filters both LLPs and projecteds out of the RAP calculation. The result is what we call manipulation-free RAP (MFRAP): a value that reflects genuine market activity rather than the loudest or most coordinated traders.

Core features

Algorithmic item valuation

Every tracked item gets a manipulation-free RAP calculated from the last N sales (default 20, fully customizable in Advanced Mode). Manipulation filtering removes both LLPs and projecteds that distort traditional RAP. You can toggle filtering off, set a basic 50% threshold, or define a custom threshold.

Trade Feed

A swipe-based feed of fully proposed trades pulled from your actual Roblox inventory and other connected users' inventories. The system generates the trades for you. You swipe right to accept, left to pass. Mutual swipes get elevated treatment. There are three card types: auto-generated, user-posted, and generic auto (where you set tags like Upgrade, Downgrade, Adds, or Any and the system fills in the rest).

Item charts and indicators

Every featured item has price history charts. Advanced charting with candlesticks, RSI, SMA, EMA, Bollinger Bands, VWAP, MACD, volume bars, drawing tools, and fullscreen mode is in development. These features are coming soon.

Portfolio dashboard

Connect your Roblox account once and FSZero imports your historical inventory data. The dashboard shows best and worst performers across multiple timeframes, item count over time, RAP tier breakdown, RAP growth, and total RAP charts.

Owner lookup

Search any Roblox username to view their tracked limited inventory.

Minds and Ideas

Each item has a comment section called Minds for short discussion. Ideas are longer multi-item posts that reference up to four items at once.

Trade Calculator

Pit two sides of a potential trade against each other. Add up to four items per side and FSZero shows the net RAP and manipulation-free RAP difference, each side's reseller floor and estimated USD value, manipulation flags, and a combined chart of how the items on each side would have performed together over time.

Watchlist

Star any item to pin it to your watchlist and keep tracking its value and movement on return visits.

Messaging and notifications

A mutual match unlocks a priority trade chat. You can also send friend requests and direct messages to other traders. In-site notifications keep you up to date on swipes, matches, friend requests, and new messages.

Tabs

A browser-style tab system inside the site. Open up to ten items in tabs simultaneously to compare without losing your place.

Pricing

FSZero is currently free during early access. Paid tiers may be introduced in the future, but core features available today will remain accessible.

Funding and trust

FSZero is currently founder-funded. No tracking cookies are used, no Roblox passwords or login credentials are ever stored, and no user data is sold. Account verification uses bio verification: you place a short generated code in your Roblox profile bio so FSZero can confirm you own the account. No Roblox login is ever required. Inventory is read through Roblox's official APIs: the Open Cloud inventory API when you authorize it, or Roblox's public collectibles endpoint otherwise.

Coverage

FSZero tracks 2,500+ classic Roblox limiteds, with 41 hand-picked featured items receiving full customizable analytics.

Where to access FSZero

Visit fszero.trade.