Cross Platform Daily Comparison Polymarket Kalshi · Surf

Share a market link from either site, links from both sites, or a plain-language description of the event. I’ll look for the same event on both platforms and ask you to choose if more than one result fits. Choose a period from 1 day to all available history; the default is 30 days. The results use different units on each site. If finding the markets requires a separate paid search, I’ll show the maximum charge and ask before using it.

Returns daily Polymarket volume/open interest in USD and Kalshi volume/open interest in contracts for one matched market pair.

USD and contract counts have different units. Matching does not establish identical settlement rules or an executable arbitrage opportunity.

Use one Toolmu account and a shared prepaid balance across available Tools. Pay per use; no separate supplier subscription is required. The current execution ceiling for this Tool is 0.0288 Toolmu credits per call. This is a maximum, not the settled charge. Before execution, get the current Tool contract and check availability, the latest maximumCredits, your balance and budget. Supplier response credits_used, when present, describes supplier API credits and is not the Toolmu customer charge.

Ask your agent to Compare daily data for one matched Polymarket and Kalshi market. Provide the required inputs above. If Toolmu is already connected, reuse that connection; otherwise use the setup instructions on this page. Before a paid execution, the agent must read the current Tool contract and check availability, the credit ceiling, balance, budget and your authorization. It should then execute the Tool and explain the returned fields and limitations.

Inspect any returned observation time, cache status, watermark, pagination and errors using their documented meanings. A successful request alone does not establish complete coverage. Where no freshness or completeness guarantee is documented, treat it as unknown. Saved Examples are historical and viewing them does not refresh data or execute a new call.