# OddsPit > Quantitative prediction-market edge finder for Kalshi (primary) with optional > Polymarket cross-platform arbitrage. Scans 300+ live Kalshi markets every 5 > minutes using 14 quantitative signals: spread inefficiency, volume surge, > near-expiry entropy, news sentiment, calibration bias (historical NO-asymmetry), > longshot detection, retail spread harvesting, smart-money flow, time-of-day edge, > maker execution, crypto price lag (log-normal model vs BTC/ETH/SOL spot), > Kelly position sizing, EV optimization, and Kalshi↔Polymarket cross-platform arb. ## About - Product: OddsPit SaaS dashboard (Kalshi-first) - URL: https://oddspit.com - Category: FinTech / Prediction Markets / Quantitative Trading - Kalshi is a CFTC-regulated Designated Contract Market - Pricing: Free tier (top 5 Kalshi markets) · Pro $29/mo · Annual $199/yr ## Signals - Spread: YES+NO deviation from 1.00 - Volume Surge: 24h vol / open-interest ratio - Near-Expiry: entropy in markets expiring within 7 days - News Sentiment: Google News RSS cross-referenced with mid-price - Calibration Bias: historical resolved-market NO-asymmetry - Crypto Lag: log-normal probability vs BTC/ETH/SOL spot price - Cross-Platform Arb: Kalshi ↔ Polymarket price comparison (optional) - Smart Money: whale wallet position tracking - Longshot: insurance on <7% / >93% tails - Retail: sports/politics spread harvesting - Time Edge: overnight ET window performance boost - Maker Execution: limit-order recommendation based on depth - Kelly Sizing: mathematically optimal position size - EV Optimizer: expected value per dollar risked ## Content - Blog: https://oddspit.com/blog — strategy, research, and arbitrage playbooks - Forum: https://oddspit.com/forum — community edge strategies and market ideas - Careers: https://oddspit.com/careers — open roles ## Data Sources - Kalshi API: https://trading-api.kalshi.com (primary) - Polymarket Gamma API: https://gamma-api.polymarket.com (optional, arb only) - CoinGecko API: https://api.coingecko.com - Google News RSS (background batched polling) ## Research Basis Signals are grounded in academic prediction-market microstructure research including calibration curves, maker-taker gap analysis, and excess-return studies. Calibration bias uses a hybrid empirical+theoretical curve that sharpens automatically as resolved market history accumulates. ## Not financial advice. For informational purposes only. ## Not financial advice. For informational purposes only.