{"uid":"cap_neTJuIjsx58vo5jFDbY3J","slug":"greeneris-data-kalshi-prediction-markets-a3f02310","name":"greeneris-data Kalshi Prediction Markets","description":"Open markets on Kalshi, the CFTC-regulated US event exchange, most-traded first: ticker, title, live yes bid/ask (USD, 0-1), mid-quote implied probability, 24h volume, open interest and close time, from the public Trade API v2. Query: ?series=KXBTC (optional series_ticker filter, e.g. KXBTC, KXCPIYOY) &limit=1-25 (default 10). JSON, 5min cache. Cross-reference /v1/predict/polymarket for venue spreads.","url":"https://data.greeneris.io/v1/predict/kalshi","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","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","properties":{"limit":{"type":"integer","default":10,"maximum":25,"minimum":1,"description":"Markets to return"},"series":{"type":"string","description":"Kalshi series_ticker filter, e.g. KXBTC (optional)"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"count":1,"series":"KXFED","source":"Kalshi Trade API v2 (CFTC-regulated event exchange, live public quotes, prices in USD 0-1)","markets":[{"title":"Will the upper bound of the federal funds rate be above 4.00% following the Fed's Mar 17, 2027 meeting?","ticker":"KXFED-27MAR-T4.00","yes_ask":0.49,"yes_bid":0.03,"subtitle":"4.00%","close_time":"2027-03-17T17:55:00Z","last_price":0.05,"volume_24h":21,"implied_prob":0.26,"open_interest":1305}]}},"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_QLG_8-qrHpT9bAVmjBkQO","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":"Fetches live Kalshi event contract quotes and implied probabilities from the CFTC-regulated prediction exchange","exampleAgentPrompt":"What's the current implied probability on Kalshi for the Fed keeping rates above 4% after the March 2027 meeting? Show me the top 5 markets in the KXFED series.","exampleUseCases":null,"resultDescription":"Returns a list of up to 25 Kalshi event markets with their tickers, titles, yes/ask and yes/bid prices (in USD 0–1), last traded price, 24h volume, open interest, implied probability, and contract close time. Source is identified as Kalshi Trade API v2 (CFTC-regulated).","failureModes":["HTTP 402 returned if USDC payment via x402 protocol has not been completed — machine-readable quote included in response","Invalid or unknown series_ticker silently returns empty markets array","limit out of range (1–25) causes validation error","Network or upstream Kalshi API outage returns 5xx error"],"whenToPreferThis":"Use this endpoint when you need live, CFTC-regulated prediction market quotes from Kalshi — particularly for macro events (Fed rate decisions, crypto price levels) where you want market-implied probabilities rather than model forecasts. Prefer over alternatives when you need structured yes/bid, yes/ask, and open interest data for event contracts in a single pay-per-call call with no account required.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T18:47:01.220Z","isFirstParty":false}