Agent Kiosk Prediction Market Arbitrage Scanner

x402

Agent Kiosk Prediction Market Arbitrage Scanner is a paid API for AI agents from agent-kiosk.vercel.app, paid per call via x402, $0.015/call, status unknown (last checked 2026-10-19).

Aggregates prediction markets across Kalshi, Polymarket, and Manifold to surface cross-venue probability spreads and arbitrage opportunities by keyword.

Price / call$0.015

Seller volume →—

Success—

StatusUnknown

How this service works

Unified Kalshi, Polymarket & Manifold Prediction Market Aggregator and Cross-Venue Probability Spread / Arbitrage Scanner.

Output

Returns a JSON object containing the query keyword, a list of matched prediction markets (each with title, venue name, USD volume, and yes probability percentage), and the total number of markets scanned across all three platforms.

Example use cases

Election odds arbitrage scan

“Search across Kalshi, Polymarket, and Manifold for any prediction markets about the 2024 election and return up to 20 results — I want to see if any venues have meaningfully different yes probabilities I could exploit.”

Fed rate cut probability comparison

“Pull up to 10 prediction markets about Fed interest rate cuts across all three venues and show me the yes probability and volume for each so I can compare where the market disagrees.”

Crypto event market aggregation

“Scan prediction markets on Kalshi, Polymarket, and Manifold using the keyword 'ethereum' and give me up to 25 results — I want the title, venue, volume, and probability for each market.”

Technical details

Endpoint

POSThttps://agent-kiosk.vercel.app/v1/prediction-arb?utm_source=zero.xyz

When to prefer

Choose this endpoint when you need cross-venue prediction market data in a single call — particularly when looking for probability discrepancies or arbitrage spreads between Kalshi, Polymarket, and Manifold. Prefer it over querying each platform separately when you want normalized, aggregated results with volume and probability in one response.

Side effects

Query string missing or empty returns validation error
Limit out of 1-25 range returns error
Upstream venue APIs (Kalshi, Polymarket, Manifold) temporarily unavailable causing partial or empty results
No markets found for obscure or misspelled query returns empty markets array
Payment failure or insufficient USDC balance returns 402

Input

Schema · Request body

Field	Type	Description
limit	number	Max markets to return (1-25)
query	string	Topic or event keyword to scan across Kalshi, Polymarket & Manifold (e.g. bitcoin, fed, election)

Output

Schema · Response

{
  "type": "json",
  "example": {
    "query": "bitcoin",
    "markets": [
      {
        "title": "Will Bitcoin reach $100k?",
        "venue": "polymarket",
        "volume_usd": 14500000,
        "yes_probability_pct": 62.5
      }
    ],
    "total_scanned": 65
  }
}

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