PolyKal (polykal.net) is an independent, read-only research tool for Polymarket and Kalshi markets: prices, order-book depth, fill estimates, fee rules and publicly visible large trades, side by side.
Headline odds do not tell you what a position actually costs or how thin the market behind it is. PolyKal reads each platform's public data and shows the parts that matter for research: the order book at the size you care about, the estimated fill and slippage, the fee rule that applies, the settlement rules, and the recent large fills. Where the two platforms list similar events, PolyKal lets you put them next to each other without pretending they are the same contract.
PolyKal is built and operated by a small team working on prediction-market data infrastructure: engineering for data collection and site reliability, and a research function for the fee, market and methodology content. We do not publish individual names, consistent with how most small analytics tools in this space operate, and we stand behind the site under the corporate entity below.
polykal.net is operated by PolyKal. Privacy policy and terms of service: Legal & support.
PolyKal is not affiliated with, endorsed by, or operated by Polymarket or Kalshi. Platform names are used only to describe data sources. Fee formulas and rate constants are taken from each platform's own published documentation and re-checked on a schedule described in the methodology.
Every explanatory page shows who wrote it, who reviewed it and when it was last reviewed. Fee pages also show the date their constants were verified against the official source. Errors reported to [email protected] are checked against the platform's own page and corrected in the next build.
Questions about a comparison, a data discrepancy, or a request to remove data: [email protected]. See also the FAQ.
Independent tool. Not affiliated with, endorsed by, or operated by Polymarket or Kalshi. Data from public sources. Not financial advice.
PolyKal (polykal.net) is an independent, read-only research tool for Polymarket and Kalshi markets: prices, order-book depth, fill estimates, fee rules and publicly visible large trades, side by side.
Headline odds do not tell you what a position actually costs or how thin the market behind it is. PolyKal reads each platform's public data and shows the parts that matter for research: the order book at the size you care about, the estimated fill and slippage, the fee rule that applies, the settlement rules, and the recent large fills. Where the two platforms list similar events, PolyKal lets you put them next to each other without pretending they are the same contract.
PolyKal is built and operated by a small team working on prediction-market data infrastructure: engineering for data collection and site reliability, and a research function for the fee, market and methodology content. We do not publish individual names, consistent with how most small analytics tools in this space operate, and we stand behind the site under the corporate entity below.
polykal.net is operated by PolyKal. Privacy policy and terms of service: Legal & support.
PolyKal is not affiliated with, endorsed by, or operated by Polymarket or Kalshi. Platform names are used only to describe data sources. Fee formulas and rate constants are taken from each platform's own published documentation and re-checked on a schedule described in the methodology.
Every explanatory page shows who wrote it, who reviewed it and when it was last reviewed. Fee pages also show the date their constants were verified against the official source. Errors reported to [email protected] are checked against the platform's own page and corrected in the next build.
Questions about a comparison, a data discrepancy, or a request to remove data: [email protected]. See also the FAQ.
Independent tool. Not affiliated with, endorsed by, or operated by Polymarket or Kalshi. Data from public sources. Not financial advice.