Kalshi & Polymarket Arbitrage Scanner - Cross-Exchange Gaps

Polymarket vs Kalshi Matched Markets & Price Gaps

literate_universe/polymarket-kalshi-matched-markets

Finds the same question listed on both Polymarket and Kalshi - election odds, politics, crypto, sports - and reports both prices side by side with the gap and the cross-venue edge each way. Public APIs, no login. Matches are heuristic and carry a similarity score.

Polymarket vs Kalshi Arbitrage — Same Question, Two Prices

jpmarketdata/prediction-market-arbitrage

Give it a question that trades on both Polymarket and Kalshi and get the price gap between them, after Kalshi's fee. Returns best bid and ask on each site, which site to buy on and sell on, the gap in cents per $1 contract. $0.02 per pair priced, suggestions included; refusals are free. Unofficial.

Find the same question priced differently on Kalshi, Polymarket and PredictIt. Matches equivalent binary Yes/No markets across venues and reports the YES-price gap, the cheaper side, and whether that gap clears both venues bid/ask. Keyless, no browser. Pay per matched pair.

Prediction Markets Scraper - Kalshi & Polymarket Odds

punkrecordsdata/prediction-markets-scraper

Scrape real-time prediction market odds from Kalshi and Polymarket: current prices, volumes, order book depth, and cross-platform price gaps when the same question trades on both exchanges.

Prediction Market Scanner — Polymarket vs Kalshi

0xgollum/prediction-market-scanner

Search any topic and get live binary markets from Polymarket and Kalshi side by side — YES/NO prices, volume and links. Pairs the same yes/no question across both platforms and shows how their odds diverge.

Historical price series for any Kalshi or Polymarket market, both exchanges normalized to one schema. OHLC candles, tick prices, and a per-market summary row so you can find the markets that moved before paying for their full history. No API keys.

Prediction Markets — Polymarket & Kalshi, One Schema

alaudinburki/prediction-markets-unified

Live prices, volume and liquidity from Polymarket and Kalshi in one unified, CSV-ready dataset — so you can compare or arbitrage across both venues without writing two parsers. Free public APIs, no keys.

Polymarket & Kalshi Arbitrage Monitor

automation-lab/polymarket-kalshi-arbitrage-monitor

Match public Polymarket and Kalshi binary contracts, compare outcome prices, and export confidence evidence with candidate cross-market spread calculations.

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.

Polymarket Kalshi Arbitrage Scanner | Matched Markets & Edge

tactful_anvil/polymarket-kalshi-arbitrage-scanner

Match the same prediction market on Polymarket and Kalshi, compare YES/NO ask prices and get fee-adjusted, risk-free arbitrage edge for every pair. Entity-exact matching (names, strikes, dates) — no false-positive soup. $2/1,000 matched pairs.