Polymarket Markets Scanner
LiveAbout the scanner
Every active Polymarket prediction market as a sortable row with 17 metrics — bid/ask spread (% and ¢), 1h and 24h price change, volume, liquidity, daily LP rewards, taker/maker fees, and creation/end dates. For a per-trader ranking of currently-paying LPs, see the Polymarket Leaderboard.
Nine range filters with histograms narrow the list by any dimension; category include/exclude pills, multi-select tags, full-text search across market questions, and a per-user word blocklist refine further. Bookmark rows to a watchlist, save filter combinations as named presets — four built-in (Hot, Ending soon, Tight spreads, High rewards) plus up to four custom slots.
Data flows from Polymarket's public Gamma API (eligibility, rewards, metadata) and CLOB API (live order book). Prices refresh every 30 seconds; reward parameters refresh daily after each epoch settles.
Custom Filters

Volume
$5.6M
24h change
-70.5%
Liquidity
$1.2M
Spread
0.0%
Bid / Ask
Rewards
$2

Volume
$1.5M
24h change
-6.0%
Liquidity
$641K
Spread
13.0%
Bid / Ask
Rewards
$1,010

Volume
$1.1M
24h change
0.0%
Liquidity
$4.9M
Spread
0.0%
Bid / Ask
Rewards
—

Volume
$727K
24h change
+0.1%
Liquidity
$58 314
Spread
150.0%
Bid / Ask
Rewards
—
Frequently asked
How is this different from polymarket.com/markets?
Polymarket's listing sorts by featured/recency and surfaces price + volume. The Scanner adds 15 more sortable fields — LP rewards eligibility, spread in both % and ¢, taker/maker fee economics, 1h and 24h momentum, eligibility parameters (min-shares, max-spread, competition), end and created dates. Built for screening, not browsing.
Is the scanner free, and do I need to sign up?
Yes, the scanner is free — no signup, no email, no wallet connection required. A Polymarket account is only needed if you want to place trades; the scanner itself is read-only analytics that anyone can browse, filter, and save presets in.
Can I use the scanner in the United States?
The scanner is a public data view, freely accessible from anywhere. Polymarket trading itself is restricted in the US under a 2022 CFTC settlement — US users can read market data here but cannot place trades on Polymarket directly. Other jurisdictions follow local regulation.
Does the scanner connect to my wallet or read my Polymarket balance?
No wallet connection is required. The scanner pulls public market data from Polymarket's Gamma and CLOB APIs; watchlist bookmarks and saved presets live in your browser's localStorage and never leave the device. The scanner has no access to your Polymarket account, balance, or open positions.
Which columns are visible by default, and how do I show more?
Seven columns ship visible: Volume, Bid/Ask, 24h Change, Liquidity, Spread, Rewards, Category. Ten more are available via the gear icon at the top of the table — 1h Change, Spread ¢, End/Created dates, Min shares, Max spread, Competition, Taker fee, Maker rebate, Effective fee. Every data column can be hidden individually, so the minimum is just the pinned Market title (favorite bookmark always shows). Compact mode caps the visible set at 7; "Wide mode" (same gear icon) unlocks up to 12.
Can I rearrange the table columns?
Yes. Drag any column header sideways to reorder — the column you grab follows the cursor; neighbours glide aside. Two columns stay pinned: the Market title on the left and the favorite bookmark on the right. 17 reorderable data columns total: Volume, Bid/Ask, 24h Change, 1h Change, Liquidity, Spread (% and ¢), Rewards, Category, End/Created dates, Min shares, Max spread, Competition, Taker fee, Maker rebate, Effective fee. Your column order persists in localStorage per browser, so the layout you set survives reloads.
Where does the data come from?
All numbers are pulled from Polymarket's public Gamma API (market metadata, eligibility, rewards) and CLOB API (live order book — bid, ask, depth). Volume aggregates fills from the CLOB. Two columns are computed by PolyScalping rather than read directly: effective fee resolves the category fee schedule plus any per-market overrides; 1h and 24h momentum aggregate the CLOB price-history feed. We are an independent analytics layer; not affiliated with Polymarket.
How often does each kind of data refresh?
Prices, spreads, volume, and liquidity refresh every 30 seconds via server cache. LP rewards eligibility and fee parameters refresh once per day, after Polymarket's reward epoch settles. Momentum windows (1h, 24h change) recompute continuously. Created/end dates are static.
How do I filter for markets that pay LP rewards?
Open the Filters pill above the table, set the "Daily rewards" range minimum to $1 (the smallest non-zero step). Only currently-paying markets remain. Sort the "Rewards" column descending to surface the biggest pools first. For a per-trader view, see the LP Leaderboard.
What is the watchlist and how do I save filter combinations?
Click the bookmark icon on any row to save the market to your watchlist; toggle "Watchlist only" in the scope pills above the table to limit the view. Filter combinations save as named presets via the Filters panel ("Save preset"). Both watchlist and presets persist in localStorage per browser — no cross-device sync.
Disclaimer: PolyScalping is an independent analytics layer — not affiliated with Polymarket. Data is aggregated from Polymarket's public APIs for informational purposes only and does not constitute investment advice. Prediction markets carry risk; do your own research before committing capital.


































