Polymarket + Kalshi Arbitrage Finder - No Login Needed

Scans both Polymarket and Kalshi for matching binary prediction markets and identifies price discrepancies where buying YES on one platform and NO on the other guarantees a risk-free profit. Returns ranked opportunities with trade details and return %. Now covers PredictIt too - see our Arb Scanner.

Kalshi Prediction Markets — Odds, Probabilities, Volume

nexgendata/kalshi-prediction-markets-tracker

Track live Kalshi prediction markets: yes/no bid/ask, last price, implied probability, volume, liquidity, and close time. For traders, researchers, and media tracking event odds. No API key. Pay per record.

Kalshi & Polymarket Prediction Market Odds Scraper

scrapebench/kalshi-polymarket-prediction-market-scraper

Live odds, volume, liquidity and settlement from Kalshi and Polymarket in one schema — with weather markets resolved to city, station and temperature bracket.

Kalshi Profile Scraper

saswave/kalshi-profile-scraper

$0.8 / 1000 results. Extraction tool designed to unlock the social and financial layers of the Kalshi prediction market. Targeting individual trader profiles. Get data on profile, open positions, closed positions, trades, top categories, posts, comments, likes

Polymarket Prediction Market Tracker by Category

scrapemint/polymarket-market-monitor

Pull Polymarket prediction markets by category, keyword, min volume, liquidity, and price move. Returns deduped JSON with question, outcomes, prices, 24h volume, and end date. Uses the official Polymarket Gamma API.

Polymarket Scraper

saswave/polymarket-scraper

Extract data from website polymarket.com Collect informations of search markets, profiles, leaderboard, global activity transactions, portfolio positions, profile activity, historical prices

Crypto Arbitrage Scanner

dataraptor/crypto-arbitrage-scanner

Crypto Arbitrage Scanner and compares real-time crypto prices across major exchanges. Instantly detect the best arbitrage opportunities, filter by coin, exchange, or spread. Boost profits with automated, accurate crypto arbitrage monitoring—fast, easy, and reliable!

Finds matched markets across Polymarket and Kalshi and computes fee-adjusted, order-book-depth-aware arbitrage edges. Monitor mode emits only new or changed opportunities and can push webhook alerts.

Kalshi Scraper — Markets, Odds, Volume & Order Books

pixflor/kalshi-markets-scraper

Export live Kalshi prediction-market data as clean rows: title, Yes/No prices, implied probability, spread, 24h volume, open interest, category and close date. Returns actively traded markets, not dead auto-generated ones.

Prediction Markets API — Kalshi & Polymarket Odds

lergassy/prediction-markets-api

Kalshi and Polymarket in one table: implied probability, yes and no price, best bid and ask, 24h move, volume, liquidity and close date for every market. Election odds, sports and economic event contracts, with price history and order book. No API key.