Index onlineMerchant portal
Api Endpoint

2s

Browse Kalshi regulated prediction markets. Filter by status (open/closed/settled), event_ticker, series_ticker, or specific tickers; page with limit + cursor. Each market returns yes/no bid+ask and last price (in dollars, 0-1 = implied probability), 24h + total volume, liquidity, open interest, open/close times, and result if settled. Read-only mirror of Kalshi's market list (no Kalshi key needed).

Open interactive test console

Offering

Provider
2s.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://2s.io/api/predict/kalshi-markets
MIME type
application/json
First seen
2026-10-16T01:54:06.400Z
Last seen
Tags
public-records, identifiers, AI-agents, us-gov-data, X402, upto-billing, ai-gateway, agent-infrastructure

Website

Payment pricing

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

Payment option 1
0.0025 USDC
Atomic price: 2500 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Payment option 2
0.0025 USDC
Atomic price: 2500 · Network: solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · Asset: USDC · Scheme: exact
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "2500",
    "payTo": "0x2b6D4988Db4723E6908Db86Ab2b8dFBc51FC32C5"
  },
  {
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "amount": "2500",
    "payTo": "TW6ntaGzvj63ZgPjszd4FCGmVTGfzv1MAYZbjYcyWhn"
  }
]

Observed health

Status
Healthy
Latest latency
1047 ms
Average latency
375 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": {
      "const": "http"
    },
    "method": {
      "const": "GET"
    },
    "queryParams": {
      "type": "object",
      "properties": {
        "limit": {
          "type": "integer",
          "minimum": 1,
          "maximum": 100
        },
        "cursor": {
          "type": "string",
          "maxLength": 400
        },
        "eventTicker": {
          "type": "string",
          "maxLength": 120
        },
        "seriesTicker": {
          "type": "string",
          "maxLength": 120
        },
        "status": {
          "type": "string",
          "enum": [
            "unopened",
            "open",
            "closed",
            "settled"
          ]
        },
        "tickers": {
          "type": "string",
          "maxLength": 400,
          "description": "Comma-separated tickers."
        }
      },
      "additionalProperties": false
    }
  },
  "required": [
    "type",
    "method",
    "queryParams"
  ]
}

Output schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "type": "object",
  "properties": {
    "input": {
      "type": "object",
      "properties": {
        "type": {
          "const": "http"
        },
        "method": {
          "const": "GET"
        },
        "queryParams": {
          "type": "object",
          "properties": {
            "limit": {
              "type": "integer",
              "minimum": 1,
              "maximum": 100
            },
            "cursor": {
              "type": "string",
              "maxLength": 400
            },
            "eventTicker": {
              "type": "string",
              "maxLength": 120
            },
            "seriesTicker": {
              "type": "string",
              "maxLength": 120
            },
            "status": {
              "type": "string",
              "enum": [
                "unopened",
                "open",
                "closed",
                "settled"
              ]
            },
            "tickers": {
              "type": "string",
              "maxLength": 400,
              "description": "Comma-separated tickers."
            }
          },
          "additionalProperties": false
        }
      },
      "required": [
        "type",
        "method",
        "queryParams"
      ]
    }
  },
  "required": [
    "input"
  ]
}