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Price spreads
Find where venues disagree on the same outcome’s price. A large spread signals potential mispricing.
Example: “Will the Fed cut rates?” — YES is 42c on Kalshi but 39c on Polymarket. If you think the true price is closer to 42c, Polymarket is offering a discount.
Unlike arbitrage, price spreads are not risk-free. They highlight venue disagreement, which can signal a trading edge.

Parameters

integer
default:"10000"
Lookback window in minutes.

Example

Response

Each row also includes full kalshi, polymarket, and opinion venue blocks (with prices, volume, and execution-ready identifiers like market_ticker, condition_id, and yes_token_id / no_token_id) — see the Cross-venue arbitrage reference for the full venue-block shape.