Kalshi vs Polymarket — Live Sports Gaps

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Pick the size that fits your layout and paste the iframe into your page. Works in any HTML context — WordPress, Ghost, Webflow, Substack, Beehiiv, Notion, Discord landing pages, and HTML email newsletters.

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Attribution requirements

The Powered by The 7 Oracles bar must remain visible on every embed — Free, Pro, and Enterprise alike. Do not crop, recolor, or obscure it. The dofollow backlink to predictionmarketspicks.com is part of the embed license for all tiers.

FAQ

Is this widget free to embed?

Yes. The free tier allows 600 page loads per hour per visitor IP, with a 10,000 per hour ceiling per embedding domain. Publishers who need higher limits should upgrade to Pro at $14.99 per month for 50,000 requests per hour per API key (5× the free Origin ceiling), or Enterprise for 500,000 per hour.

How often does the data refresh?

The payload is refreshed every 15 minutes by a Supabase edge function. The widget itself is cached at the edge for 10 minutes (free) or 5 minutes (Pro), so visitors see near-live data without hammering origin.

What data powers the widget?

Live price gaps between Kalshi (US-regulated, CFTC-licensed) and Polymarket on the same sports games. For each game listed on both exchanges, the widget shows Kalshi and Polymarket implied win probabilities, the gap in percentage points, and a signal tier based on symmetric KL divergence (ARB for the largest cross-exchange disagreements, WATCH for moderate ones). Because neither exchange charges vig, the gap is the true cross-exchange price difference, not a house margin. Covers NBA, MLB (daily April–October), and the 2026 World Cup. Refreshed every 15 minutes by the PredictionMarketsPicks sports-arb engine.

Can I customize the size?

3 fixed variants: Hero 560×320, Article 728×400, Sidebar 320×300. Each is hand-tuned for that aspect ratio. Custom sizes are available on Enterprise plans.

Can I use this on a commercial site?

Yes. All tiers permit commercial use. The Powered by The 7 Oracles attribution bar with a dofollow backlink remains visible on every embed — Free, Pro, and Enterprise alike.