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Kalshi Markets Data Feed
x402
Kalshi Markets Data Feed is a paid API for AI agents from x402-deployer.x402-deployer.workers.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-14).
Fetches live CFTC-regulated prediction market contracts from Kalshi, with prices normalized to 0–1 probabilities, filterable by status, series, event, query, and volume.
Price / call$0.005
Success—
StatusUnknown
How this service works
Kalshi markets / event contracts / Kalshi API / CFTC-regulated prediction markets / Kalshi browse / KalshiEX markets list. Pulls live markets from api.elections.kalshi.com with filter by status, series ticker, event ticker, free-text query, minimum volume. Prices converted from cents to 0-1 probabilities for easy cross-venue compare. DATA only — no order entry.
Output
Returns a list of Kalshi market objects each containing ticker, title, status, 24-hour volume, and yes midpoint probability as a 0–1 float (converted from cents). Also includes a pagination cursor for subsequent pages and a count of returned markets, plus an attribution string.
Example use cases
Election odds monitoring
“What are all the open Kalshi markets in the KXELONMARS series right now? Show me their current yes probabilities and 24-hour volume.”
Cross-venue probability comparison
“Get me the top 50 open Kalshi markets matching 'inflation' so I can compare their yes-midpoint probabilities against Polymarket prices.”
High-liquidity market discovery
“List the open Kalshi prediction markets with a minimum 24-hour volume of 10000 — I want to find the most actively traded contracts right now.”
Technical details
Endpoint
POSThttps://x402-deployer.x402-deployer.workers.dev/kalshi-marketsWhen to prefer
Use this endpoint when you need live, CFTC-regulated prediction market data from Kalshi specifically, especially when you want prices already normalized to 0–1 probabilities for easy cross-venue comparison. Prefer it over scraping Kalshi directly or using raw Kalshi API calls when you want a lightweight proxy with built-in probability conversion. Best for read-only market discovery and monitoring — not for order placement.
Side effects
- Kalshi upstream API unavailable — returns error from proxy
- Invalid status enum value — rejected before forwarding
- No markets match filters — returns empty markets array with count 0
- Cursor token expired or invalid — pagination fails
- Rate limit or payment failure — x402 payment required error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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