Settlement Edge Alternatives (2026)

The Overround

The Overround compares the same event across Kalshi, Polymarket and a panel of nine US sportsbooks, normalises the prices so they can be read against each other, and shows which venue is cheapest to back a given side. It also publishes the overround on each market, the sum of what it costs to back every outcome at each venue, so you can see what the house is charging before you trade. Every market gets its own page carrying the full field, the settlement source and the contract terms. Free, no account, and the underlying data is available as unauthenticated JSON.

Coinverse

Are you ready to take your trading to the next level? Experience the power of a prediction market with Coinverse! Join us now! #Coinverse #TradingRevolution #JoinNow

socialpredict

The open prediction market engine for everyone SocialPredict lets anyone – individuals, classrooms, companies, and even governments – tap into the power of prediction markets.

Whalidate

Copy trading for Polymarket. Whalidate scores whale wallets on how they made their money (return, settled trades, worst drawdown and how much of the profit came from one trade) and copies only the new trades that pass your rules: entry price band, slippage cap, market categories and loss limits. Every strategy runs free on paper first; live trading is a paid plan from $49/month with no per-trade fee.

PMWallets

PMWallets is a Polymarket smart-money leaderboard built from its own ledger of the Polygon chain. Wallets that trade as one are scored as one trader; win rates come with a 95% confidence interval, profit is shown without the single best market, and published records are never rewritten. Follow any trader and get every fill over WebSocket or signed webhook in about a second, from $0.01 per wallet per hour. API, MIT SDKs, an open-source copy-trading bot and a browser extension.