# x402-factory Super Bowl Winner Prediction Market Probability

> x402-factory Super Bowl Winner Prediction Market Probability is a paid API for AI agents from x402-factory.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-15).

Returns real-time prediction market probability for which team will win the next Super Bowl, aggregated across venues like Kalshi and Polymarket.

## Facts

- Endpoint: GET https://x402-factory.com/v1/evergreen/superbowl-winner
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-factory-super-bowl-winner-prediction-market-probability-283547f2
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_cKKtE62m3rcCvP53dbmQv

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-factory-super-bowl-winner-prediction-market-probability-283547f2
```

Example prompt: What's the current prediction market probability for who wins the next Super Bowl — pull the live aggregated odds across Kalshi and Polymarket right now?

## When to prefer this

Choose this endpoint when you need real-time, aggregated prediction market probability for the Super Bowl winner from multiple venues (Kalshi, Polymarket) in a single call, with liquidity and volume metadata. Prefer it over scraping individual venue APIs when you want normalized, cross-venue signals with freshness guarantees. It is especially suited for AI agents that need a single authoritative probability figure with market microstructure context (volume, liquidity, 1h momentum).

## Known failure modes

- 402 Payment Required — no X-PAYMENT header provided; response includes USDC payment requirements for retry
- Invalid or expired payment header — returns payment error
- Market data temporarily unavailable — upstream venue outage may cause stale or missing per-venue data
- Rate limit exceeded — too many requests in a short window

## How this service works

Paid data APIs for AI agents: prediction-market analytics, weather intelligence, weather×market edge signals, and SEC/gov data. Paid endpoints use the x402 protocol (HTTP 402 + USDC on Base): call without payment to receive requirements, retry with an X-PAYMENT header. Machine-readable catalog: /llms.txt. Per-endpoint docs: /docs/{id}.

## Output

Returns a JSON object with the current aggregated prediction market probability for the Super Bowl winner, including: team slug, question text, per-venue breakdown (Kalshi/Polymarket) with implied probability, 24h USD volume, and liquidity score, plus aggregate divergence across venues, 1-hour price movement, resolution date, and metadata including data freshness and source list.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "properties": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "data": {
   "slug": "chiefs-win-super-bowl-lxi-2027-02",
   "topic": "superbowl-winner",
   "category": "sports",
   "question": "Will the Chiefs win Super Bowl LXI?",
   "per_venue": [
    {
     "venue": "kalshi",
     "implied_p": 0.1616,
     "market_id": "KXCHIEFSWINSUPER",
     "volume_24h_usd": 109434.1,
     "liquidity_score": 0.908
    }
   ],
   "divergence": 0,
   "probability": 0.1616,
   "current_slug": "chiefs-win-super-bowl-lxi-2027-02",
   "last_move_1h": -0.0049,
   "topic_question": "Who wins the next Super Bowl?",
   "resolution_date": "2027-02-07",
   "rolls_to_next_at": "2027-02-07",
   "resolution_criteria_summary": "Resolves YES if Kansas City wins Super Bowl LXI."
  },
  "meta": {
   "docs": "https://x402-factory.com/docs/probability.evergreen.superbowl-winner",
   "sources": [
    "kalshi",
    "polymarket"
   ],
   "version": "1.0.0",
   "endpoint": "/v1/evergreen/superbowl-winner",
   "data_mode": "live",
   "freshness": "realtime",
   "request_id": "req_00000000",
   "generated_at": "2026-08-21T03:58:58.098Z"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-factory-super-bowl-winner-prediction-market-probability-283547f2/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-factory.com](https://www.zero.xyz/host/x402-factory.com/llms.txt)