DegenBenchPrediction marketsPolymarket#02Checked 26 Oct 202611 sources · official docs + public data

#02Polymarket

Polymarket review

Crypto prediction market, order book on Polygon#02EVM

The crypto-native venue: a central order book settled on Polygon, collateral that stays in your wallet, and a fee that depends on the market's category, from nothing in geopolitics to 3.5% at 50¢ in crypto. Access is the catch: 41 countries are blocked or close-only, the US, the UK and France among them, and France's regulator has ordered internet providers to block the site.

Open Polymarketpolymarket.com

polymarket.com

Event contracts can expire worthless, and many countries treat prediction markets as gambling. Adults only, where it is legal. Only stake what you can afford to lose.

In an allowed country but the site won’t open? Your VPN may be connected to a country this platform excludes. Turn it off and the page will load.

DegenBenchChecked 26 Oct 202611 sources · official docs + public data#02

Event contracts can expire worthless, and many countries treat prediction markets as gambling. Adults only, where it is legal. Only stake what you can afford to lose.

In an allowed country but the site won’t open? Your VPN may be connected to a country this platform excludes. Turn it off and the page will load.

Taker fee: 0–3.5% at 50¢ · rate set by categoryTakers pay contracts × rate × p × (1 − p): 0.07 in crypto, 0.05 in sports, economics, culture and weather, 0.04 in politics, finance, tech and mentions, 0 in geopolitics; combos 0.05. 100 contracts at 50¢ cost $1.75 in crypto, $1.25 in sports and $1.00 in politics. Makers pay nothing and share 15% to 25% of taker fees; deposits and withdrawals carry no Polymarket fee.
30-day volume: $2.31BDefiLlama, Polymarket International, 30 days to 26/10/2026: amount paid, read from Polymarket's contracts on Polygon. Combos are counted separately ($25.3M). In September 2026, CNBC reported unusually heavy volume on low-odds contracts of the international exchange; Polymarket says active traders correcting mispricing drive it, and denies wash trading.
Excluded countries: 41Polymarket's API docs block Iran, Syria, Cuba, North Korea, Crimea, Donetsk and Luhansk outright. In 37 other countries, including the US, the UK, France, Germany, Italy, Australia and Brazil, plus British Columbia, Ontario, Alberta and Quebec, you can only close positions you already hold; Ireland, Japan, the Netherlands and South Korea are close-only on the website only, and Malta for sports only. The help center (14 August 2026) calls most of them fully blocked. US residents are sent to Polymarket US.

Type: VenueLists, matches and settles its own markets
Operator: Adventure One QSS Inc.Named on Polymarket's own pages; no licence is published for the international venue. In April 2025 it settled with Ontario's securities regulator, accepting a two-year market ban and a C$200,000 penalty.
Custody: Self-custody: your keys, collateral in a smart contract
Identity check (KYC): Above a thresholdSign up with an email or a self-custody wallet; Polymarket asks its top-volume traders for more information. Its terms forbid using a VPN to get around a block.
Resolution: Optimistic oracleUMA's optimistic oracle: anyone proposes an outcome against a bond, typically $750 pUSD, then a two-hour challenge window opens. A second dispute goes to a vote of UMA token holders. Crypto up/down markets settle from Chainlink instead.
Settles on: Polygon · pUSD

Checked 26 Oct 202611 sources

Who it’s for

Pick it if

You want to trade from your own wallet, without a document check, in a country Polymarket serves.

Skip it if

You are in the US, the UK, France or another excluded country: its terms also forbid using a VPN.

Strengths

Collateral stays in your wallet and in Polymarket's contracts, never in a company account.
No fee on geopolitics markets, and makers pay nothing while sharing 15% to 25% of taker fees.
Public resolution through UMA's oracle, with a bond and a challenge window anyone can use.

Limits

Blocked or close-only in 41 countries, including the US, the UK, France, Germany and Australia.
Front-end breach in June 2026: injected code stole funds from some users, whom Polymarket said it would refund in full.
No regulator behind the international venue; Spain, the Netherlands and France acted against it in 2026.

Excluded countries

Polymarket's API docs block Iran, Syria, Cuba, North Korea, Crimea, Donetsk and Luhansk outright. In 37 other countries, including the US, the UK, France, Germany, Italy, Australia and Brazil, plus British Columbia, Ontario, Alberta and Quebec, you can only close positions you already hold; Ireland, Japan, the Netherlands and South Korea are close-only on the website only, and Malta for sports only. The help center (14 August 2026) calls most of them fully blocked. US residents are sent to Polymarket US.

Australia
Belarus
Belgium
Brazil
Burundi
Central African Republic
Congo - Kinshasa
Cuba
Ethiopia
France
Germany
Iran
Iraq
Ireland
Italy
Japan
Lebanon
Libya
Malta
Myanmar (Burma)
Netherlands
New Zealand
Nicaragua
North Korea
Poland
Russia
Singapore
Slovakia
Somalia
South Korea
South Sudan
Sudan
Syria
Taiwan
Thailand
United Kingdom
United States
US Outlying Islands
Venezuela
Yemen
Zimbabwe

Close-only countries

From these countries you can close positions you already hold, but not open new ones.

Australia
Belarus
Belgium
Brazil
Burundi
Central African Republic
Congo - Kinshasa
Ethiopia
France
Germany
Iraq
Ireland
Italy
Japan
Lebanon
Libya
Malta
Myanmar (Burma)
Netherlands
New Zealand
Nicaragua
Poland
Russia
Singapore
Slovakia
Somalia
South Korea
South Sudan
Sudan
Taiwan
Thailand
United Kingdom
United States
US Outlying Islands
Venezuela
Yemen
Zimbabwe

Markets listed

Politics
Sports
Crypto
Economics
Finance
Culture
Weather
Tech
Geopolitics
Mentions

What it offers

Order bookYes
Anyone can create a marketNo
Combos / parlaysYes
Maker rebatesYes
Yield on collateralNot documented
Trading APIYes
Mobile appNo
Telegram botNot documented
Own tokenNo
Points programNot documented

“Not documented” means we found no official page, not that the feature is missing.

How to start safely

Check that you are allowed to trade
Read the excluded countries on the card. If yours is listed, do not trade there: platforms such as Polymarket forbid getting around their blocks with a VPN in their terms.
Open the official site yourself
Type polymarket.com or use a bookmark: fake prediction market sites and “airdrop” pages are common and drain wallets.
Read the market rules
Every market names its resolution source and its end date. A contract pays on what those rules say, not on what the headline says.
Start small and mind the fee
Fee formulas peak around 50¢. A limit order that waits in the book usually pays less than one that takes the best price, and often nothing.

Security record

2026-08-31 — A major outage of Polymarket's trading API (CLOB) halted trading. Source

2026-07-17 — France's gambling regulator ANJ announced that its president had ordered internet providers to block polymarket.com as an illegal gambling offer. Source

2026-06-25 — Through a compromised third-party vendor, attackers injected malicious code into polymarket.com for some users and stole funds; Polymarket said it had contained the incident and would refund victims in full. Source

2026-06-17 — The Dutch regulator KSA moved to collect €420,000 from Polymarket's operator for stopping its Dutch service one day late. Source

2026-05-26 — Spain temporarily banned Polymarket and Kalshi for operating without a gambling licence. Source

2025-04-17 — Ontario's securities regulator settled with Polymarket's current and former operators over binary options offered in Ontario: two-year market bans and a C$200,000 penalty. Source

Official domains: polymarket.com

Card history

Every change to the figures on this card, dated the day it went live. Rewording is left out.

26 Oct 2026
Added to DegenBench

A figure is wrong or out of date? Send it with the official source: once checked, the fix shows up here, dated.Report an error

Sources

Checked on 26 Oct 2026. Facts change quickly: re-check prices and fees in the app.

Polymarket0–3.5% at 50¢ · polymarket.com

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