Prediction Markets
Event contracts, forecasting and the research tools around them.
Prediction markets let you buy yes-or-no contracts on real events. A contract that turns out right pays $1, so the price is roughly the crowd's odds. In the US, the regulated ones are exchanges overseen by the CFTC. Kalshi and Polymarket US are two of them.
This category covers the platforms, the brokers that reach them, free practice and forecasting sites, and research tools that read market data. We don't list trading bots, copy trading or arbitrage tools, and we never tell you what to trade. Nothing here is a way to make money.
The law is unsettled. Federal appeals courts disagree, several states have court orders against some platforms, and the Supreme Court has been asked to weigh in. Every page has a dated status line. Laws change, check your state.
18+ on most platforms (21+ at Interactive Brokers, and some states set 19 or 21, per secondary sources). Many paid Polymarket and Kalshi bots sold online are reported to be scams or malware. We don't recommend any trading bot. Gambling problem? Call or text 1-800-MY-RESET.
Status as of Oct 14, 2026.
Predictions.io PICK03AI forecasting tools
FutureSearch PICK04AI tools for prediction market research (Kalshi, Polymarket)
PMIP PICKFAQ
What is a prediction market?
A market where you buy yes-or-no contracts on events. A correct contract pays $1. The price, between 1¢ and 99¢, works as rough odds.
Is Kalshi legal in my state?
Kalshi is a CFTC-designated contract market. Courts have blocked some of its markets in some states, and other states are suing. Laws change, check your state.
CFTCKalshi: How prediction markets are regulatedNinth Circuit opinion, KalshiEX v. Assad (Aug 28, 2026)Washington AG: Judge orders Kalshi to cease operations in WashingtonMichigan AG: Court order halting Kalshi sports contracts (Sep 2, 2026)
Is Polymarket legal in the US?
Only Polymarket US, run by QCX LLC and designated by the CFTC, is for US users. The international polymarket.com is not. State actions are ongoing. Laws change, check your state.
CFTCCFTC order: Polymarket US designation (Nov 24, 2025)Polymarket US Trust & Safety Hub
How old do I have to be?
Real money: 18+ at Kalshi, Robinhood and PredictIt, 21+ at Interactive Brokers. Secondary sources report 19 in Alabama and Nebraska and 21 in Mississippi at Kalshi. For Polymarket US, see its Trust & Safety Hub. Crypto.com requires a Crypto.com U.S. account (18+). Free sites: Manifold is 13+ and Metaculus 16+, with a parent or guardian for minors.
Kalshi: Account eligibility (18+)Polymarket US Trust & Safety HubCrypto.com U.S. terms (clause 5.3.1)
Can AI beat prediction markets?
Not in the studies we found. A 2026 study (arXiv 2607.17765) found four chatbots didn't beat the betting market on 104 World Cup matches. On ForecastBench, top AI systems are statistically tied with superforecasters. We list AI tools for research only.
Are paid prediction market bots safe?
Many paid Polymarket and Kalshi bots sold online are reported to be scams or malware. We don't recommend any trading bot.
Do you earn money from these links?
No. We don't use referral or affiliate links for any prediction market platform.