{"uid":"cap_o2L03TuFOKaeLX2qxAiGf","slug":"x402-kalshi-markets-5d72a10b","name":"x402 Kalshi Markets","description":"Search or list open Kalshi prediction markets (regulated US event contracts)","url":"https://x402tap.com/api/kalshi-markets?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","properties":{"q":{"type":"string","description":"Optional keyword filter on the market title"},"limit":{"type":"string","description":"Max markets to return, 1-50 (default 10)"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"count":1,"query":"fed rate","markets":[{"title":"Example Kalshi market?","status":"active","ticker":"KXEXAMPLE-99","yesAsk":0.12,"yesBid":0.1,"closeTime":"2099-08-01T04:59:00Z","lastPrice":0.12,"liquidity":0,"volume24h":174.62,"eventTicker":"KXEXAMPLE-99"}]}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_sPVwGFvq-x1G3OScRiWQI","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Search or list open Kalshi regulated US prediction markets by keyword or browse the most recent active contracts","exampleAgentPrompt":"Search Kalshi for open prediction markets about the Fed rate and show me up to 20 results with their current yes/no prices.","exampleUseCases":[{"title":"Fed rate decision market search","prompt":"Find me open Kalshi prediction markets about the Federal Reserve interest rate decision — show up to 15 results with their yes/no prices and close times."},{"title":"Election outcome market browse","prompt":"Search Kalshi for any active prediction markets related to the 2024 presidential election and list the top 10 with their current prices."},{"title":"Macro event contract discovery","prompt":"Pull up the latest open Kalshi markets about inflation and show me up to 20 of them with their tickers and current bid/ask prices."}],"resultDescription":"Returns a JSON object with a count of matched markets and an array of market objects, each containing the market title, status, ticker, yes ask/bid prices, last price, 24h volume, liquidity, close time, and event ticker. Results are filtered by the optional keyword query and capped by the limit parameter.","failureModes":["No markets match the keyword query — returns an empty markets array with count 0","Limit parameter out of range (not 1–50) — may return an error or be clamped","Payment not processed or x402 auth failure — returns 402 Payment Required","Kalshi API upstream unavailable — may return a 5xx error or empty results","Network timeout if Kalshi's backend is slow"],"whenToPreferThis":"Choose this endpoint when you need to discover or search across multiple open Kalshi prediction markets by keyword. Use this before calling the Kalshi Market Detail endpoint, which requires a specific ticker. Prefer this over general web search when you need structured, real-time market data including prices and volume from a regulated US exchange.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-10T18:32:18.751Z","isFirstParty":false,"canonicalSlug":"x402-kalshi-markets-5d72a10b"}