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Api Endpoint

Kalshi Market Predictor

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.

Open interactive test console

Offering

Provider
data.greeneris.io
Method
GET
Offering type
Api Endpoint
Transport type
http
Category
Prediction Markets
Delivery
Not provided
Pricing model
Not provided
x402 version
2

Endpoint context

URL
https://data.greeneris.io/v1/predict/kalshi
MIME type
application/json
First seen
2026-10-16T01:50:19.913Z
Last seen
Tags
prediction-markets, kalshi, probabilities, Events, Macro, regulated

Website

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1
0.01 USDC
Atomic price: 10000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "10000",
    "payTo": "0x6ab8efe305cce67daa48c97bde29c04402822dff"
  }
]

Observed health

Status
Healthy
Latest latency
103 ms
Average latency
784 ms
HTTP status
402
Last checked
Reachability
100% over 13 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string",
      "const": "http"
    },
    "method": {
      "type": "string",
      "enum": [
        "GET",
        "HEAD",
        "DELETE"
      ]
    },
    "queryParams": {
      "type": "object",
      "properties": {
        "series": {
          "type": "string",
          "description": "Kalshi series_ticker filter, e.g. KXBTC (optional)"
        },
        "limit": {
          "type": "integer",
          "minimum": 1,
          "maximum": 25,
          "description": "Markets to return",
          "default": 10
        }
      }
    }
  },
  "required": [
    "type",
    "method"
  ],
  "additionalProperties": false
}

Output schema

{
  "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
      }
    ]
  }
}