XO Market review
The most open venue in the series: anyone can create a market for $1 plus a $10 seed, and a panel of AI agents resolves it, with staked human jurors on appeal. No company is named behind it, and its taker fee depends on the market: 3% at 50¢ on Pulse rounds.
xo.market
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.
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
- 3% at 50¢ on Pulse · other markets set their own rateTakers pay shares × base rate × p × (1 − p). The base rate is 6% on Pulse rounds, so 100 contracts at 50¢ cost $1.50; other markets set their own. Makers pay nothing and receive 35% of the taker fee on eligible markets. Creating a market costs $1 plus a seed order of at least $10.
- 30-day volume
- $66MDefiLlama, 30 days to 26/10/2026: USDC paid on the order book and on the older AMM markets.
- Excluded countries
- 8Its terms exclude the US, the UK, France, Singapore and Ontario, plus Cuba, Iran, North Korea and Syria. No date is shown on the page.
- Type
- VenueLists, matches and settles its own markets
- Operator
- Not documentedNo legal entity is named: the terms refer to “the operators of XO” and choose Swiss law. No licence or regulator is referenced.
- Custody
- Self-custody smart wallet
- Identity check (KYC)
- No KYCNo identity check to open an account or trade; contest and referral payouts may require verification.
- Resolution
- AI panel, human appealMODRA, a panel of independent AI agents, drafts the rules and proposes outcomes; when agents disagree or a trader challenges, a court of staked human jurors decides. XO can also void a market.
- Settles on
- XO rollup (Celestia DA) · USDC
Checked 26 Oct 20267 sources
Who it’s for
Pick it if
You want to create your own markets and earn 20% of their lifetime trading fees.
Skip it if
You want a named operator and human resolution, or you are in the US, the UK, France or Singapore.
Strengths / Limits
Strengths
- Anyone can open a market for $1 plus a $10 seed, and creators earn 20% of its lifetime fees.
- No KYC, and makers get 35% of the taker fee on eligible markets.
- Order book, public API and parlays.
Limits
- No legal entity named in its terms.
- AI agents propose every outcome; human jurors only step in on disputes.
- Its litepaper, launch post and docs disagree on fees and seed amounts.
Excluded countries
Its terms exclude the US, the UK, France, Singapore and Ontario, plus Cuba, Iran, North Korea and Syria. No date is shown on the page.
Cuba
France
Iran
North Korea
Singapore
Syria
United Kingdom
United States
Markets listed
- Sports
- Crypto
- Culture
- Finance
- Tech
What it offers
- Order bookYes
- Anyone can create a marketYes
- Combos / parlaysYes
- Maker rebatesYes
- Yield on collateralNot documented
- Trading APIYes
- Mobile appNot documented
- Telegram botNot documented
- Own tokenNo
- Points programYes
“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 xo.market 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
No incident found in our sources. That is not a guarantee.
Official domains: xo.market
Card history
Every change to the figures on this card, dated the day it went live. Rewording is left out.
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.
XO Market3% at 50¢ · xo.market
Open