Prediction Market Arb · :Slug
Same-event price comparison across Polymarket and Kalshi -- the arbitrage read. Given a Polymarket event slug, returns both venues' Yes probability for the same event, the spread in basis points, and a verdict. A missing Kalshi match comes back null, not an error. No key. $0.05/call.
GET https://www.x402financialdata.com/prediction-market-arb/:slug
0.05 USDC on Base · payTo 0xe4181c7de066959bcca010525304ba68a84768e0
Status: unverified (probe-pending)
Settlement: direct to the seller's payTo — 0% HIVE402 take
Payment routes
Base · 0.05 USDC · payTo 0xe4181c7de066959bcca010525304ba68a84768e0 · via guests · settles direct
Solana · 0.05 USDC · payTo GJ1fu5pi1WaMHWy9nR1Fh67FEtrWXKrY2Ud6fdGbq33b · via guests · settles direct