Prediction market odds, liquidity quality, event coherence and cross-venue gaps from Polymarket and Kalshi public data.
payments ON MAINNET (real money) · 9 live endpoints
| Endpoint | Price | What it answers |
|---|---|---|
GET /kalshi-event | $0.02 | Kalshi event overview by event ticker: every outcome's yes price and whether exclusive outcomes sum to 100%. |
GET /kalshi-market | $0.02 | Kalshi market odds by ticker: yes bid/ask, mid, spread, volume, open interest and a liquid/thin verdict. |
GET /pm-event-overround | $0.02 | Do a Polymarket event's outcome prices add up to 100%? Sums the Yes prices and flags over- or under-round. |
GET /pm-expiring | $0.02 | Polymarket markets resolving within 1-168 hours that still have real volume, with current odds and quality. |
GET /pm-kalshi-gap | $0.02 | Price gap between a Polymarket market and the Kalshi market you pair it with, with liquidity quality on both. |
GET /pm-market | $0.02 | Polymarket market odds by slug: implied probabilities, spread, volume and a liquid/thin verdict. |
GET /pm-movers | $0.02 | Biggest 24-hour odds moves among liquid live Polymarket markets, with direction, size and liquidity quality. |
GET /pm-search | $0.02 | Search live Polymarket markets by topic. Returns top matches with implied odds, volume and liquidity quality. |
GET /pm-trending | $0.02 | Most-traded live Polymarket markets in the last 24 hours with odds, 24h price change and liquidity quality. |
GET /catalog returns this list as JSON. Activity hub · uptime.
Market-implied odds and screens computed from Polymarket and Kalshi public market data, provided as is, with no warranty of accuracy, timeliness or fitness for a purpose. Not betting, financial, legal or investment advice, and not affiliated with Polymarket, Kalshi or any exchange. Availability of these venues varies by jurisdiction; check the venue's rules before acting. Every paid response carries a disclaimer field.