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x402 Kalshi Markets
x402
x402 Kalshi Markets is a paid API for AI agents from x402tap.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-10).
Search or list open Kalshi regulated US prediction markets by keyword or browse the most recent active contracts
Price / call$0.01
Success—
StatusUnknown
How this service works
Search or list open Kalshi prediction markets (regulated US event contracts)
Output
Returns a JSON object with a count of matched markets and an array of market objects, each containing the market title, status, ticker, yes ask/bid prices, last price, 24h volume, liquidity, close time, and event ticker. Results are filtered by the optional keyword query and capped by the limit parameter.
Example use cases
Fed rate decision market search
“Find me open Kalshi prediction markets about the Federal Reserve interest rate decision — show up to 15 results with their yes/no prices and close times.”
Election outcome market browse
“Search Kalshi for any active prediction markets related to the 2024 presidential election and list the top 10 with their current prices.”
Macro event contract discovery
“Pull up the latest open Kalshi markets about inflation and show me up to 20 of them with their tickers and current bid/ask prices.”
Technical details
Endpoint
GEThttps://x402tap.com/api/kalshi-markets?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need to discover or search across multiple open Kalshi prediction markets by keyword. Use this before calling the Kalshi Market Detail endpoint, which requires a specific ticker. Prefer this over general web search when you need structured, real-time market data including prices and volume from a regulated US exchange.
Side effects
- No markets match the keyword query — returns an empty markets array with count 0
- Limit parameter out of range (not 1–50) — may return an error or be clamped
- Payment not processed or x402 auth failure — returns 402 Payment Required
- Kalshi API upstream unavailable — may return a 5xx error or empty results
- Network timeout if Kalshi's backend is slow
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"count": 1,
"query": "fed rate",
"markets": [
{
"title": "Example Kalshi market?",
"status": "active",
"ticker": "KXEXAMPLE-99",
"yesAsk": 0.12,
"yesBid": 0.1,
"closeTime": "2099-08-01T04:59:00Z",
"lastPrice": 0.12,
"liquidity": 0,
"volume24h": 174.62,
"eventTicker": "KXEXAMPLE-99"
}
]
}
}Tags
x402
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