{"uid":"cap_K9Y8vM_vsFJEPSRC4X_rU","slug":"kalshi-markets-listing-api-b4dd4c5b","name":"Kalshi Markets Listing API","description":"List Kalshi markets (CFTC-regulated US event contracts). Filter by status (open/closed/settled/unopened) or by event ticker. Returns yes/no bid/ask, last price, volume, open interest. Complement to Polymarket for US-regulated markets and Kalshi-only categories (weather, economic data).","url":"https://agent402.tools/api/kalshi-markets","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"limit":{"type":"number","description":"Max markets (1-100, default 20)."},"status":{"type":"string","description":"Filter by status: open, closed, settled, unopened."},"eventTicker":{"type":"string","description":"Filter to a specific event ticker."}}},"responseSchema":{"type":"json","example":{"count":1,"cursor":"next-page-token","source":"kalshi","markets":[{"noAsk":0.55,"noBid":0.53,"title":"Will the Democratic nominee win?","venue":"kalshi","status":"open","ticker":"PRES-24-DEM","volume":12345,"yesAsk":0.47,"yesBid":0.45,"openTime":"2026-01-01T00:00:00Z","subtitle":"2026 US Presidential election","venueUrl":"https://kalshi.com/markets/pres-24-dem","closeTime":"2026-11-03T23:59:00Z","lastPrice":0.46,"eventTicker":"PRES-24","openInterest":5678}]}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.002","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":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_0bj-hqIOaQDUO9nqtGX_F","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Lists CFTC-regulated Kalshi event contract markets with filtering by status or event ticker, returning bid/ask, last price, volume, and open interest","exampleAgentPrompt":"Show me up to 50 currently open Kalshi prediction markets — I want to see the yes/no bid and ask prices, last traded price, volume, and open interest for each one.","exampleUseCases":null,"resultDescription":"A list of up to 100 Kalshi event contract markets (default 20), each containing yes/no bid and ask prices, last traded price, volume, and open interest, optionally filtered by market status (open, closed, settled, or unopened) or by a specific event ticker.","failureModes":["Invalid status value not in [open, closed, settled, unopened] returns validation error","Unknown or misspelled eventTicker returns empty results or 404","Limit out of range (below 1 or above 100) returns validation error","Payment of 0.002 USDC not fulfilled causes 402 Payment Required","Kalshi API upstream downtime causes 503 or timeout"],"whenToPreferThis":"Use this endpoint when you need CFTC-regulated US prediction market data from Kalshi, especially when compliance with US regulations matters or when Polymarket is unavailable. Prefer this over Polymarket endpoints when operating in a US-regulated context or when you need official exchange-style bid/ask data with open interest metrics.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T07:03:18.674Z","isFirstParty":false}