Kalshi markets list

List Kalshi markets (CFTC-regulated US event contracts). Filter by status (open/closed/settled/unopened) or by event ticker. Returns yes/no bid/ask, last price, volume, open interest. Complement to Polymarket for US-regulated markets and Kalshi-only categories (weather, economic data).

Input

Field	Type	Description
status	string	Filter by status: open, closed, settled, unopened.
eventTicker	string	Filter to a specific event ticker.
limit	number	Max markets (1-100, default 20).

Example output

{
  "count": 1,
  "cursor": "next-page-token",
  "markets": [
    {
      "ticker": "PRES-24-DEM",
      "eventTicker": "PRES-24",
      "title": "Will the Democratic nominee win?",
      "subtitle": "2026 US Presidential election",
      "status": "open",
      "openTime": "2026-01-01T00:00:00Z",
      "closeTime": "2026-11-03T23:59:00Z",
      "yesBid": 0.45,
      "yesAsk": 0.47,
      "noBid": 0.53,
      "noAsk": 0.55,
      "lastPrice": 0.46,
      "volume": 12345,
      "openInterest": 5678,
      "venue": "kalshi",
      "venueUrl": "https://kalshi.com/markets/pres-24-dem"
    }
  ],
  "source": "kalshi"
}

Try it — see the 402 challenge (free)

curl -i -X POST https://agent402.tools/api/kalshi-markets \
  -H "Content-Type: application/json" \
  -d '{"status":"open","limit":5}'

The response is HTTP 402 Payment Required with exact payment requirements. Any x402 v2 client pays automatically and retries:

Paid call (JavaScript agent)

import { wrapFetchWithPayment } from "@x402/fetch";
import { x402Client } from "@x402/core/client";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

const client = new x402Client();
registerExactEvmScheme(client, { signer: privateKeyToAccount(KEY) });
const payFetch = wrapFetchWithPayment(fetch, client);

const res = await payFetch("https://agent402.tools/api/kalshi-markets", {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({
    "status": "open",
    "limit": 5
  }),
});

Wallet-only. This tool reaches the network/browser/storage, so it is paid in USDC via x402 (no proof-of-work tier).

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