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greeneris-data Kalshi Prediction Markets
x402
greeneris-data Kalshi Prediction Markets is a paid API for AI agents from data.greeneris.io, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).
Fetches live Kalshi event contract quotes and implied probabilities from the CFTC-regulated prediction exchange
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
Returns a list of up to 25 Kalshi event markets with their tickers, titles, yes/ask and yes/bid prices (in USD 0–1), last traded price, 24h volume, open interest, implied probability, and contract close time. Source is identified as Kalshi Trade API v2 (CFTC-regulated).
Example use cases
Example prompt
“What's the current implied probability on Kalshi for the Fed keeping rates above 4% after the March 2027 meeting? Show me the top 5 markets in the KXFED series.”
Technical details
Endpoint
GEThttps://data.greeneris.io/v1/predict/kalshiWhen to prefer
Use this endpoint when you need live, CFTC-regulated prediction market quotes from Kalshi — particularly for macro events (Fed rate decisions, crypto price levels) where you want market-implied probabilities rather than model forecasts. Prefer over alternatives when you need structured yes/bid, yes/ask, and open interest data for event contracts in a single pay-per-call call with no account required.
Side effects
- HTTP 402 returned if USDC payment via x402 protocol has not been completed — machine-readable quote included in response
- Invalid or unknown series_ticker silently returns empty markets array
- limit out of range (1–25) causes validation error
- Network or upstream Kalshi API outage returns 5xx error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"count": 1,
"series": "KXFED",
"source": "Kalshi Trade API v2 (CFTC-regulated event exchange, live public quotes, prices in USD 0-1)",
"markets": [
{
"title": "Will the upper bound of the federal funds rate be above 4.00% following the Fed's Mar 17, 2027 meeting?",
"ticker": "KXFED-27MAR-T4.00",
"yes_ask": 0.49,
"yes_bid": 0.03,
"subtitle": "4.00%",
"close_time": "2027-03-17T17:55:00Z",
"last_price": 0.05,
"volume_24h": 21,
"implied_prob": 0.26,
"open_interest": 1305
}
]
}
}Tags
x402
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