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Api Endpoint

Saylor Innovations Prediction Ma

All markets in a Polymarket or Kalshi event - implied probabilities, bid/ask, volume and close time

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Offering

Provider
saylorinnovations.com
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://saylorinnovations.com/api/predictions/kalshi/KXPRESNOMD-28
MIME type
application/json
First seen
2026-10-16T01:50:53.972Z
Last seen
Tags
predictions, every, Market, prediction-market, event, prediction-markets, polymarket, kalshi

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
Payment option 2
0.01 USDC
Atomic price: 10000 · Network: eip155:137 · Asset: USDC · Scheme: exact
Payment option 3
0.01 USDC
Atomic price: 10000 · Network: eip155:42161 · Asset: USDC · Scheme: exact
Payment option 4
0.01 USDC
Atomic price: 10000 · Network: solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · Asset: USDC · Scheme: exact
Payment option 5
10000 atomic units
Atomic price: 10000 · Network: solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · Asset: Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB · Scheme: exact
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "10000",
    "payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa"
  },
  {
    "scheme": "exact",
    "network": "eip155:137",
    "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
    "amount": "10000",
    "payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa"
  },
  {
    "scheme": "exact",
    "network": "eip155:42161",
    "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
    "amount": "10000",
    "payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa"
  },
  {
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "amount": "10000",
    "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7"
  },
  {
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
    "amount": "10000",
    "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7"
  }
]

Observed health

Status
Healthy
Latest latency
226 ms
Average latency
870 ms
HTTP status
402
Last checked
Reachability
100% over 11 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",
        "POST",
        "PUT",
        "PATCH",
        "DELETE",
        "HEAD"
      ]
    },
    "pathParams": {
      "type": "object",
      "properties": {
        "platform": {
          "type": "string",
          "description": "polymarket | kalshi (path)"
        },
        "id": {
          "type": "string",
          "description": "Polymarket event slug or Kalshi event ticker (path)"
        }
      },
      "required": [
        "platform",
        "id"
      ]
    }
  },
  "required": [
    "type",
    "method",
    "pathParams"
  ],
  "additionalProperties": false
}

Output schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "input": {
      "additionalProperties": false,
      "properties": {
        "method": {
          "enum": [
            "GET"
          ],
          "type": "string"
        },
        "type": {
          "const": "http",
          "type": "string"
        }
      },
      "required": [
        "type",
        "method"
      ],
      "type": "object"
    },
    "output": {
      "properties": {
        "example": {
          "properties": {
            "category": {
              "description": "Category"
            },
            "closes_at": {
              "description": "Time the market closes",
              "type": [
                "string",
                "null"
              ]
            },
            "id": {
              "description": "Identifier of the record",
              "type": "string"
            },
            "market_count": {
              "description": "Number of market",
              "type": [
                "number",
                "null"
              ]
            },
            "markets": {
              "description": "Markets",
              "items": {
                "type": "object"
              },
              "type": "array"
            },
            "note": {
              "description": "Caveat or context for reading the result",
              "type": [
                "string",
                "null"
              ]
            },
            "platform": {
              "description": "Platform name",
              "type": "string"
            },
            "title": {
              "description": "Title",
              "type": "string"
            },
            "url": {
              "description": "Canonical URL",
              "type": [
                "string",
                "null"
              ]
            },
            "volume_24h_contracts": {
              "description": "Volume 24h contracts",
              "type": [
                "number",
                "null"
              ]
            },
            "volume_24h_usd": {
              "description": "Trading volume over the last 24 hours in US dollars",
              "type": [
                "number",
                "null"
              ]
            }
          },
          "required": [
            "platform",
            "id",
            "markets"
          ],
          "type": "object"
        },
        "type": {
          "const": "json",
          "type": "string"
        }
      },
      "required": [
        "type"
      ],
      "type": "object"
    }
  },
  "required": [
    "input"
  ],
  "type": "object"
}