Compare the top 5 platforms similar to Polydupe. Match on features, US legality, and crypto support to find the right fit for your trading style.
Ranked by shared features with Polydupe. Last updated September 2026.
Kairos is the professional trading terminal for prediction markets. One book across Kalshi, Polymarket and Predict.fun, with real-time data, global best bid and best ask, professional order types and low-latency execution. The API also serves Hyperliquid HIP-4 market data.
Decision-grade prediction-market intelligence for traders, research teams and builders. Scanverity connects market rules and named resolution sources to timestamped evidence and executable order-book depth, with held-out calibration. It indexes 189,000+ active-universe markets and reports 100% current book coverage for its top-volume tier. Researcher, Team and Resolution API workflows are available.
Polyfollow is a Polymarket trader discovery, analytics, and copy-trading platform. It provides public wallet profiles, live rankings, side-by-side performance and risk comparisons, calculators, and optional automated copying. Browsing and analytics are free; copied taker orders carry a 0.5% builder fee, with no subscription or performance fee.
Sonist automates live mention-market trading on Kalshi and Polymarket. It brings markets from both exchanges into one interface and monitors live audio, subtitle feeds, or accessibility captions for configured words. When a word is said, Sonist applies your risk limits and sends the trade through your account, letting you use the lowest-latency source available for each event and guaranteeing profit.
Rivo is a prediction market terminal covering both Polymarket and Kalshi. Track large trades with the trader, market, side, size and entry price attached, see traders ranked on settled performance rather than self-reported numbers, and review resolved win/loss history. Backtest a rule against markets that already resolved, run it on paper, then execute it on Autopilot through your own connected account. Live autopilot runs on Kalshi via your own API key; Polymarket is research, alerts and paper trading for now. Non-custodial: funds stay at the venue. Includes a REST API and a remote MCP server.
Polymarket copytrading webapp, high speed fills, vast data, profile explorer.
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