ProbSights indexes both venues into a single schema, so a Kalshi ticker and a Polymarket condition ID come back from the same query. Search live markets, compare cross-venue odds, and pull orderbook and trade history from one API.
Full-text search across both venues, filterable by venue, volume, and status.
Crypto, economics, politics, sports, and weather events grouped by topic.
Bid/ask snapshots and trade history for indexed markets, via API or the web tool.
Matched events and net spread after fees between Kalshi and Polymarket.
Large trades across both venues, with per-event alerts.
How to work with prediction market data — backtesting, microstructure, API.
Query normalized Kalshi and Polymarket markets with the ProbSights API.
Search markets Get API accessData from Kalshi and Polymarket. Search live API docs Pricing