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Predict Kalshi

by eu-verify in Markets & finance

x402 APIPassing, checked 25 min ago

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.

GET https://data.greeneris.io/v1/predict/kalshi

Last 30 days

All checks passedSome failedAll failedNot checked
Uptime
100%
Response time
287 ms typical, 287 ms slowest 5%
Last check
25 min ago
Next check
in 5 min

How to call it

# See the payment challenge (nothing is charged)
curl -i -X GET "https://data.greeneris.io/v1/predict/kalshi?limit=5&series=KXFED"
import { wrapFetchWithPayment } from "@x402/fetch";
import { x402Client } from "@x402/core/client";
import { ExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

const client = new x402Client().register(
  "eip155:8453",
  new ExactEvmScheme(privateKeyToAccount(process.env.AGENT_KEY)),
);
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? Preflight it first for $0.005:
// GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fdata.greeneris.io%2Fv1%2Fpredict%2Fkalshi
const res = await pay("https://data.greeneris.io/v1/predict/kalshi?limit=5&series=KXFED");
console.log(await res.json());

Example input

{
  "limit": 5,
  "series": "KXFED"
}

Example output

{
  "count": 1,
  "markets": [
    {
      "close_time": "2027-03-17T17:55:00Z",
      "implied_prob": 0.26,
      "last_price": 0.05,
      "open_interest": 1305,
      "subtitle": "4.00%",
      "ticker": "KXFED-27MAR-T4.00",
      "title": "Will the upper bound of the federal funds rate be above 4.00% following the Fed's Mar 17, 2027 meeting?",
      "volume_24h": 21,
      "yes_ask": 0.49,
      "yes_bid": 0.03
    }
  ],
  "series": "KXFED",
  "source": "Kalshi Trade API v2 (CFTC-regulated event exchange, live public quotes, prices in USD 0-1)"
}

Security scan

  • No findings. We scan names, descriptions and tool definitions for hidden instructions and other prompt-injection patterns.

Recent checks

WhenResultHTTPTimePrice
25 min agoPassed402327 ms$0.01
5 h agoPassed402287 ms$0.01