MarketMaster
Find real Kalshi vs Polymarket edges, after fees
Details
- External ID
- 1257660
- Source
- PH
- Company
- —
- Product
- MarketMate
- Website domain
- producthunt.com
- Launched
- Sept. 22, 2026
- Cohort
- —
- Upvotes
- 1
- Upvotes percentile
- 0.30815693820825313
- Tags
- Fintech, Developer Tools, Artificial Intelligence
- Fetched at
- Sept. 23, 2026, 1:01 a.m.
- Updated at
- Sept. 23, 2026, 1:01 a.m.
Description
MarketMaster matches the same event across Kalshi and Polymarket, checks both venues' settlement rules, and ranks price gaps after fees, so you only see edges you could actually take. Free scanner, alerts, a trade journal, and a free API + MCP server.
Enrichment
- Theme
- financial intelligence and trading tools
- Vertical
- Fintech
- Function
- Analytics & BI
- Audience
- Prosumer
- AI stance
- Not AI
- Project type
- Commercial product
- Normalized one-liner
- arbitrage scanner for kalshi and polymarket traders
- Manually corrected
- False
Could you build this?
Yes The service polls public APIs from Kalshi and Polymarket, matches related market questions via vector similarity or LLM prompts, and computes the mathematical spread minus documented fees.
Competitors
Other products that read as similar to this one — 47 launches clear the similarity bar, closest 8 shown.
Attention rank: #24 of 48 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Launched 315 days after the earliest competitor.
- prediction-market-arbitrage-trading-bot · github · 2026-09-27 · 24 upvotes · similarity 0.48
- synpath · github · 2026-09-28 · 26 upvotes · similarity 0.46
- Blink Markets · ph · 2026-09-10 · 1 upvotes · similarity 0.46
- kalshi-trading-bot · github · 2026-09-15 · 40 upvotes · similarity 0.44
- kalshi-trading-bot · github · 2026-09-17 · 51 upvotes · similarity 0.44
- Free-competitor-price-checker · ph · 2026-09-19 · 1 upvotes · similarity 0.42
- Predictefy · ph · 2026-09-30 · 1 upvotes · similarity 0.39
- polymarket-prediction-bot · github · 2026-09-15 · 24 upvotes · similarity 0.39
Other launches for this product
Same idea, different domain
Nobody's really built a analytics & bi tool for Legal yet.