MarketWeaverContract & cross-venue rule-diff analyzer
Rules you paste are parsed in your browser and are never sent to or stored on our servers. A check only meters your daily quota and pulls our public primary-source calendar for the agency detected. Free preview: 1 check per day.
Polymarket prices shown here come from Polymarket’s international site (polymarket.com), which is not available to US residents. Polymarket US is a separate CFTC-regulated venue with its own prices. Prediction market access depends on where you live. Follow each venue’s terms and location rules, and do not use a VPN or other tools to get around them.
1-Click Polymarket ↔ Kalshi Matchups
Loads both venues’ rules and runs the diff instantly. No check is used.Runs the 5-point trap check instantly. Works with Polymarket links, Kalshi links or tickers, and pasted rules. On your phone, you can also share a link straight to MarketWeaver.
Cross-venue rule diff
Side A · Polymarket
Side B · second venue
Kalshi data is requested by your browser only and never passes through MarketWeaver servers. Or paste the rules text below.