Kalshi Scraper — Prediction Markets, Prices & Volume
Pricing
from $0.70 / 1,000 result items
Kalshi prediction markets for AI agents: search open markets by keyword or series, get yes/no prices, bid/ask, volume, open interest, close dates and rules. Kalshi is the US CFTC-regulated exchange — complements Polymarket. No API key.
Ticker
ticker
Optional
Markets mode: Kalshi market ticker (the row id). Also on found = false rows: the ticker that was not found.
Found
found
Optional
Only on rows for a tickers entry Kalshi does not know: false. Absent on normal rows.
Why not found
reason
Optional
found = false rows: what went wrong and what to check.
Event ticker
eventTicker
Optional
Event the market belongs to (markets mode); the row id in events mode.
Series ticker
seriesTicker
Optional
Recurring series of the event; the row id in series mode.
Category
category
Optional
Kalshi category of the event or series.
Event title
eventTitle
Optional
Markets mode: title of the parent event.
Event subtitle
eventSubtitle
Optional
Markets mode: subtitle of the parent event.
Title
title
Optional
Market question (markets), event title (events) or series title (series).
Outcome / subtitle
subtitle
Optional
Markets: the outcome this contract stands for; events: the event subtitle.
Yes label
yesSubtitle
Optional
Markets mode: label of the Yes side.
No label
noSubtitle
Optional
Markets mode: label of the No side, as Kalshi sends it.
Market status
status
Optional
Markets mode: Kalshi market status (active, closed, determined, finalized, initialized…).
Market type
marketType
Optional
Markets mode: binary or scalar.
Strike type
strikeType
Optional
Markets mode, numeric ranges: greater, less, between, custom…
Floor strike
floorStrike
Optional
Lower bound of the numeric range, if any.
Cap strike
capStrike
Optional
Upper bound of the numeric range, if any.
Yes price (¢)
yesPrice
Optional
Best Yes ask in cents (what you would pay), falling back to the last trade.
No price (¢)
noPrice
Optional
Best No ask in cents, falling back to 100 − last trade.
Implied probability (%)
impliedProbability
Optional
Same as yesPrice: cents = percent.
Yes bid (¢)
yesBid
Optional
Best Yes bid in cents.
Yes ask (¢)
yesAsk
Optional
Best Yes ask in cents.
No bid (¢)
noBid
Optional
Best No bid in cents.
No ask (¢)
noAsk
Optional
Best No ask in cents.
Spread (¢)
spread
Optional
yesAsk − yesBid in cents.
Last price (¢)
lastPrice
Optional
Last traded Yes price in cents.
Previous price (¢)
previousPrice
Optional
Kalshi's previous reference Yes price in cents.
Price change (¢)
priceChange
Optional
lastPrice − previousPrice in cents.
Total volume (contracts)
volume
Optional
Lifetime volume in contracts ($1 notional each); events: sum over the markets.
24h volume (contracts)
volume24h
Optional
24-hour volume in contracts; events: sum over the markets in the row.
Open interest (contracts)
openInterest
Optional
Open contracts; events: sum over the markets in the row.
Liquidity ($)
liquidity
Optional
Markets mode: Kalshi's own liquidity figure. Kalshi currently sends 0 or nothing (null) for it.
Open time
openTime
Optional
Markets mode: when trading opened (UTC).
Close time
closeTime
Optional
When trading closes (UTC); events: the earliest close among the markets in the row.
Expiration time
expirationTime
Optional
Markets mode: expected expiration (UTC).
Hours to close
hoursToClose
Optional
Hours from fetchedAt to closeTime (negative once closed).
Can close early
canCloseEarly
Optional
Markets mode: whether Kalshi may close the market before closeTime.
Result
result
Optional
Markets mode: yes / no once determined, else null.
Settlement sources
settlementSources
Optional
What resolves the market: [{name, url}].
Rules
rulesPrimary
Optional
Markets mode: primary resolution rules (null with includeRules = false).
Rules (secondary)
rulesSecondary
Optional
Markets mode: secondary rules (null with includeRules = false).
Mutually exclusive
mutuallyExclusive
Optional
Whether the outcomes of the event exclude each other.
Order book
orderBook
Optional
includeOrderBook: {bestYesBid, bestYesAsk, spread, yesBidContracts, noBidContracts, yesBids[], noBids[]} in cents and contracts; null if Kalshi did not answer.
Price candles
candles
Optional
includeCandles: {period, lookbackDays, count, first, last, min, max, change, volume, candles[]}; null if not available.
Recent trades
trades
Optional
includeTrades: [{id, time, yesPrice, noPrice, contracts, takerSide, isBlockTrade}]; null if Kalshi did not answer.
Strike date
strikeDate
Optional
Events mode: the date the event resolves on (UTC).
Strike period
strikePeriod
Optional
Events mode: the period the event covers, if any.
Markets
marketCount
Optional
Events mode: markets in the row (those with the requested status).
Leading market
topMarket
Optional
Events mode: the market with the highest Yes price {ticker, title, yesPrice}.
Markets of the event
markets
Optional
Events mode: [{ticker, title, subtitle, status, yesPrice, yesBid, yesAsk, volume24h, openInterest, closeTime, result}].
Frequency
frequency
Optional
Series mode: custom, one_off, annual, monthly, weekly, daily, hourly, fifteen_min, quarterly.
Fee type
feeType
Optional
Series mode: Kalshi fee schedule type.
Fee multiplier
feeMultiplier
Optional
Series mode: Kalshi fee multiplier.
Contract URL
contractUrl
Optional
Series mode: product certification document.
Contract terms URL
contractTermsUrl
Optional
Series mode: contract terms document.
Additional prohibitions
additionalProhibitions
Optional
Series mode: who may not trade the contract.
Last updated
lastUpdated
Optional
Series mode: when Kalshi last changed the series.
URL
url
Optional
Page on kalshi.com.
API URL
sourceUrl
Optional
The Kalshi API resource the row comes from.
Fetched at
fetchedAt
Required
When the actor read the data (UTC). Always present.
