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Klymax402 Prediction Markets API
x402
Klymax402 Prediction Markets API is a paid API for AI agents from klymax402.com, paid per call via x402, $0.012/call, status unknown (last checked 2026-09-14).
Fetches live prediction market listings from Polymarket and/or Kalshi, sortable by volume, recency, or closing time, with optional category filtering.
Price / call$0.012
Success—
StatusUnknown
How this service works
One MCP endpoint gives your AI agent access to 100 APIs -- crypto, DeFi, web, AI, finance and utilities. No API keys, USDC on Base from $0.003/call.
Output
Returns a JSON object containing an array of prediction markets from Polymarket and/or Kalshi, each with market details such as title, volume, closing date, category, and source platform, along with a result count and timestamp.
Example use cases
Monitor hot crypto prediction markets
“What are the 20 highest-volume crypto prediction markets across both Polymarket and Kalshi right now?”
Scout closing political markets
“Show me the 15 political prediction markets closing soonest on Kalshi so I can see what's about to resolve.”
Discover newest sports markets
“List the 10 newest sports prediction markets available on Polymarket right now.”
Technical details
Endpoint
GEThttps://klymax402.com/api/prediction-markets/api/marketsWhen to prefer
Use this endpoint when you need to browse, discover, or surface live prediction markets from Polymarket and/or Kalshi without needing to hold API keys for those platforms. It is ideal for agents that want to present market data to users, monitor what topics are being bet on, or find markets nearing resolution. Prefer this over direct Polymarket/Kalshi integrations when you want a unified view across both platforms in a single call.
Side effects
- Invalid sort value returns an error — must be 'volume', 'newest', or 'closing_soon'
- Invalid source value returns an error — must be 'polymarket' or 'kalshi'
- Invalid category value returns an error — must be one of the five supported categories
- Limit out of range (below 1 or above 50) may return an error or be clamped
- Payment failure via x402 protocol results in a 402 response with no data
- Upstream Polymarket or Kalshi API downtime may yield empty or partial results
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| sort | string | Sort order. 'volume' = highest traded, 'newest' = recently created, 'closing_soon' = ending soonest. Default: volume. |
| limit | number | Number of markets to return (1-50). Default: 20. |
| source | string | Filter by platform. Omit to get markets from both Polymarket and Kalshi. |
| category | string | Filter markets by topic category. Omit for all categories. |
Output
Schema · Response
{
"type": "json",
"example": {
"query": "example",
"source": "example",
"markets": [],
"results": 1,
"timestamp": "example"
}
}Tags
x402
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