# x402.shizu.me Prediction Market Odds

> x402.shizu.me Prediction Market Odds is a paid API for AI agents from x402.shizu.me, paid per call via x402, $0.007/call, status unknown (last checked 2026-09-14).

Returns live prediction-market odds from Polymarket or Kalshi, including outcome prices and bid-ask spreads for active markets

## Facts

- Endpoint: GET https://x402.shizu.me/predictions
- Price: $0.007/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-shizu-me-prediction-market-odds-0e27ebaf
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_LW9JZC8Wcg-YK2yvXrHH9

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability x402-shizu-me-prediction-market-odds-0e27ebaf
```

Example prompt: Pull the top 30 active Polymarket markets right now and show me the outcome prices — I want to see which events have the most trading activity today.

## When to prefer this

Use this endpoint when you need real-time crowd-sourced event probabilities from liquid prediction markets, especially for news signal extraction, cross-market arbitrage scanning between Polymarket and Kalshi, or when you want market-implied odds on political, economic, or crypto events without building your own data pipeline.

## Known failure modes

- Invalid source parameter (not 'polymarket' or 'kalshi') returns an error
- limit out of range (below 1 or above 50) returns a validation error
- Upstream Polymarket or Kalshi API unavailable causes a 502 or timeout
- Payment not included or insufficient USDC results in 402 Payment Required

## How this service works

Live prediction-market odds. source=polymarket (default) or kalshi. Polymarket: top active markets by 24h volume with outcome prices. Kalshi: open markets with yes/no bid-ask. Query: source, limit (1-50, default 20). Use for event probabilities, news signals, and cross-market arbitrage scans.

## Output

A list of up to 50 active prediction market entries from Polymarket (sorted by 24h volume, with outcome prices) or Kalshi (open markets with yes/no bid-ask spreads), giving event names, current probabilities, and market metadata.

## Request schema (JSON Schema)

```json
{
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "method"
   ],
   "properties": {
    "method": {
     "const": "GET"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "source",
      "limit"
     ],
     "properties": {
      "limit": {
       "type": "string"
      },
      "source": {
       "type": "string"
      }
     }
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "count": 1,
  "source": "polymarket",
  "markets": [
   {
    "end": "2026-12-31T00:00:00Z",
    "prices": [
     0.62,
     0.38
    ],
    "outcomes": [
     "Yes",
     "No"
    ],
    "question": "Will X happen by 2027?",
    "volume24h": 123456.7
   }
  ]
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-shizu-me-prediction-market-odds-0e27ebaf/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.shizu.me](https://www.zero.xyz/host/x402.shizu.me/llms.txt)