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Use the Kalshi API for market data and order execution. See how to get access, find the official docs, understand fees and handle rate limits.

The Polymarket API covers market data, order execution, and real-time streams. Here is what it takes to build against it, and when to use a terminal instead.

Compare 4 Polymarket analytics tools for trader data, PnL, dashboards, and execution: Kairos, Dune, Polymarket Analytics, and Hashdive.

A prediction market API can stream prices, order books, trades, and account data. Compare native and unified access before you build.

Kalshi ran $37.7 billion in July 2026, roughly 74 percent of the category. Polymarket has the widest menu. The full ranking, by liquidity and cost, not promos.

Kalshi vs FanDuel comes down to trading contracts or placing sportsbook bets. Compare pricing, markets, execution, and the right fit for you.

Yes. Novig's Ludlow Exchange won CFTC designation June 16, 2026 and launched August 4 in 47 states. Real dollars, federal clearing, four contested states.

Novig review, August 2026: a CFTC-regulated sports exchange with tiny taker fees, $148.4 million traded in week one, and books still thinner than Kalshi's.

ProphetX review, updated August 2026: a CFTC-regulated sports exchange charging 2 percent of net winnings, zero on parlays, with liquidity as the open question.

Kalshi review 2026: a CFTC-regulated prediction market. Real fees, real markets, real execution, and how serious traders trade Kalshi through Kairos.

Robinhood's prediction markets run on Kalshi's exchange. Robinhood charges a flat 2 cents and hides the order book. Kalshi direct opens it. Kairos arms it.

Novig alternatives in 2026: Novig is a real CFTC exchange now, but it is one sports-only book. Kalshi and Polymarket run deeper. Kairos trades both.

ProphetX alternatives in 2026: ProphetX is CFTC-regulated now, but sports-only and peer-to-peer. Kalshi and Polymarket carry the depth. Kairos trades both.

Kalshi alternatives in 2026: Polymarket leads on volume, Hyperliquid is growing fast. Serious traders run both alongside Kairos, the terminal for all of them.

Polymarket alternatives in 2026: Kalshi is CFTC-regulated and US-legal. Hyperliquid crossed $80M daily in weeks. Serious traders run all three on Kairos.

PredictIt alternatives in 2026: PredictIt lives, but the $3,500 cap and politics-only list remain. Kalshi and Polymarket trade real size. Kairos trades both.

Manifold Markets alternatives in 2026: Manifold is play money by design. Kalshi and Polymarket settle in real dollars, and Kairos is the terminal for both.

Polymarket leads in volume. Kalshi is CFTC-regulated, legal in all 50 states. The answer is not one or the other. It is both.

Polymarket taker fees run $0 to $1.75 per 100 shares. Only geopolitics is free. No fees on winnings. Fee formula, full August 2026 table, and Kalshi comparison.

Polymarket is real. The original platform is not CFTC-regulated; the US exchange earned CFTC approval in December 2025. Documented insider trading in 2026.

Polymarket cleared $10.6 billion notional in March 2026 and now runs a CFTC-regulated US exchange. Real venue, real depth, new taker fees. The trader's review.

ForecastEx is Interactive Brokers' CFTC-regulated prediction market. One cent per contract, 3.80% interest on positions, thin books. The trader's review.

Polysights, reviewed: 30+ custom Polymarket metrics, AI market summaries, an insider finder, and the two things it does not do. What the tool is, who it fits, and where the trade actually gets executed.

Betmoar, reviewed: the zero-fee web terminal and official Polymarket Discord bot, its UMA dispute dashboard and news feed, what the volume claims actually say, and the one venue it cannot see.

Hashdive was acquired by Unusual Whales and became Unusual Predictions. What happened, what the smart-money screener does now, what its Smart Scores measured, and where the tracking-to-trading gap still sits.

River Markets raised an $8.5M seed led by Haun Ventures to build execution and risk infrastructure for prediction market trading firms. What is live today, who it is for, and how it compares to a trading terminal anyone can use.

Fireplace is shutting down. Trading ends 15 August 2026 and the app goes offline after 30 September. You do not have to sell: here is how to migrate your positions and cash intact, and where its traders go next.

Kalshi fees peak at $1.75 per 100 contracts at 50 cents. The formula, fee schedule, maker costs, deposit fees, and how Kalshi compares to Polymarket.

The best tools for Polymarket in 2026, compared: the Kairos terminal, free whale tracker and leaderboard, analytics, copy trading, and APIs.

The best prediction market apps in 2026, compared on real fees, liquidity and API access instead of signup bonuses. Kalshi, Polymarket, Robinhood and 5 more, plus what pro traders use on desktop.

Polymarket bots use the CLOB API to trade 24/7. Learn the top strategies, tools, and what serious traders use to get the same execution edge.

One venue or all of them? Your answer picks your trading terminal. Kalshi Pro for single-venue. Kairos for Kalshi, Polymarket, and Predict.fun in one book.

Yes. Kalshi is legit: a CFTC-regulated U.S. prediction market, legal in all 50 states. Survived a 2024 federal court challenge. How serious traders use it.

A Kalshi bot automates prediction market trades via the official Kalshi REST API. Here is how they work, who builds them, and what most traders use instead.