Platform: Kalshi (CFTC Regulated)

Kalshi data,
unified with the ecosystem

40M+ markets, 481M+ trades, and full-resolution orderbook data — normalized to match Polymarket. Cross-platform analytics built in. US-accessible, CFTC-regulated.

Get Started

40M+

Markets indexed

481M+

Trades tracked

1ms

Orderbook resolution

2021

Data since

Cross-Platform Power

See how Kalshi compares to Polymarket

Same events, different prices. We've matched Kalshi markets to their Polymarket equivalents.

Cross-Platform Price ComparisonSample events

Event	Kalshi	Polymarket
Fed holds rates June	0.68	0.72
BTC above $200k EOY	0.20	0.24
US GDP growth > 3%	0.35	0.38

Query any event and get prices from all platforms with a single API call.

Coverage

What we index from Kalshi

Markets, trades, and full-depth orderbooks — all normalized to our unified schema and queryable through one API.

Markets

All market metadata, questions, series, categories, and settlement rules

40M+

Trades

Every trade with timestamp, price, size, and side

481M+

Orderbooks

New

Full bid/ask depth snapshots at 1ms LOCF resolution — live since May 2026

1ms

Orderbook Data · New

Full-resolution Kalshi orderbooks

We now capture the complete Kalshi orderbook at 1-millisecond LOCF resolution — the same granularity we provide for Polymarket. Replay the exact bid/ask state of any Kalshi market at any point in time.

Full bid/ask depth captured at every tick — 1ms LOCF interpolation, no gaps
Live and captured continuously since May 2026
Download as Parquet or query via ClickHouse SQL
Same orderbook_snapshots schema as Polymarket — query both in one place

SQL Console

ClickHouse

SELECT
  market_id,
  outcome,
  bids,
  asks,
  timestamp
FROM orderbook_snapshots
WHERE platform = 'kalshi'
  AND timestamp BETWEEN
    '2026-05-09' AND '2026-05-10'
ORDER BY timestamp
LIMIT 100

Explore orderbook data → Run Query

Unified Schema

Kalshi data, normalized

We map Kalshi's event structure to our cross-platform model. Same schema as Polymarket data.

Series markets (e.g., Fed rate decisions) tracked as related events
Event hierarchies preserved (category → event → contract)
Settlement rules and resolution timestamps included
Cross-platform event linking to Polymarket

kalshi-query.js

// Query Kalshi markets with cross-platform context
const res = await fetch(
  'https://api.probalytics.io/api/v1/markets?platform=kalshi',
  { headers: { 'Authorization': 'Bearer api_xxx:sk_xxx' } }
)
const { data: markets } = await res.json()

// Each market includes linked events
markets.forEach(m => {
  console.log(m.question)        // "Fed cuts rates?"
  console.log(m.price)           // 0.15
  console.log(m.crossPlatform)   // { polymarket: {...} }
})

CFTC Regulated

Kalshi is the first CFTC-regulated prediction market exchange in the US. This means US residents can legally trade on Kalshi, unlike some other prediction market platforms.

Note: Probalytics provides data access only. We do not facilitate trading. Check Kalshi's terms for trading eligibility.

Access Kalshi Data

Ready to access Kalshi data?

Start accessing Kalshi data today. Cross-platform comparison included.

Also interested in other platforms? Check out Polymarket data

Kalshi data,unified with the ecosystem