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Kalshi Event Markets Data
x402
Kalshi Event Markets Data is a paid API for AI agents from x402-datashop-production.up.railway.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).
Returns live Kalshi CFTC-regulated event market data including yes bid/ask prices, implied probabilities, 24h volume, and open interest, sorted by most-traded first
Price / call$0.01
Success—
StatusUnknown
How this service works
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.
Output
A JSON array of up to 25 Kalshi event market objects (default 10), each containing: market ticker, title, live yes bid and ask prices in USD (0–1 scale), mid-quote implied probability, 24-hour trading volume, open interest, and contract close time. Results are sorted by most-traded first and cached for 5 minutes.
Example use cases
Example prompt
“Show me the top 10 most-traded Kalshi markets right now — I want to see the live yes bid/ask prices, implied probabilities, and 24h volume for the KXBTC series.”
Technical details
Endpoint
GEThttps://x402-datashop-production.up.railway.app/v1/predict/kalshiWhen to prefer
Use this endpoint when you need live, CFTC-regulated US event market prices from Kalshi — particularly for crypto (KXBTC), CPI (KXCPIYOY), or other macro series. Prefer this over Polymarket when you need regulated US exchange data or want to compare venue spreads via the cross-reference endpoint. Best for agents needing real-time implied probabilities and liquidity metrics from a compliant exchange.
Side effects
- Invalid series_ticker returns empty results or 400 error
- limit out of range (below 1 or above 25) returns validation error
- Kalshi Trade API v2 upstream outage returns 502 or stale cached data
- Malformed query parameter type returns 400 bad request
- No markets found for given series returns empty array
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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