# x402-factory: Next Major Hurricane Cat 3+ US Landfall Probability

> x402-factory: Next Major Hurricane Cat 3+ US Landfall Probability is a paid API for AI agents from x402-factory.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-14).

Returns live, cross-venue prediction-market probability that a Category 3+ hurricane will make US landfall before December 1, with per-venue breakdowns from Kalshi and Polymarket.

## Facts

- Endpoint: GET https://x402-factory.com/v1/evergreen/next-hurricane-cat3-us-landfall
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-factory-next-major-hurricane-cat-3-us-landfall-probability-56081bc8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_CsPdIy-so3365SIk5gLu_

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-next-major-hurricane-cat-3-us-landfall-probability-56081bc8
```

Example prompt: What are the current prediction-market odds — across both Kalshi and Polymarket — that a Category 3 or stronger hurricane makes US landfall before December 1 this year, and is there any divergence between the two venues?

## When to prefer this

Choose this endpoint when you need a real-time, multi-venue consensus probability for a major (Cat 3+) hurricane making US landfall — especially when you want both Kalshi and Polymarket odds in a single call with liquidity and volume metadata. Prefer this over scraping individual venues manually, over weather-service storm-track APIs (which give physical forecasts, not market-implied probabilities), or over generic prediction-market search endpoints that require you to identify and query specific market IDs yourself.

## Known failure modes

- HTTP 402 returned without X-PAYMENT header — caller must parse payment requirements and retry with USDC payment on Base
- Payment amount or token mismatch causes rejection
- Prediction market venues temporarily unavailable — stale or partial data may be returned
- No active market for the current season — endpoint may return empty or rolled-over data
- Network timeout on aggregation from upstream venues

## 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

A JSON object containing: aggregated consensus probability of Cat 3+ US hurricane landfall, per-venue breakdown (Kalshi and Polymarket) with implied probability, 24-hour USD volume, and liquidity score for each, the divergence between venues, the 1-hour probability move, resolution date (November 30), resolution criteria summary (NHC-confirmed Cat 3+ landfall), and metadata including freshness timestamp, data mode (live/realtime), and documentation URL.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "data": {
   "slug": "major-hurricane-us-landfall-2026",
   "topic": "next-hurricane-cat3-us-landfall",
   "category": "weather",
   "question": "Will a major hurricane (Category 3+) make US landfall before December 1?",
   "per_venue": [
    {
     "venue": "kalshi",
     "implied_p": 0.7278,
     "market_id": "KXMAJORHURRICANE",
     "volume_24h_usd": 84719.94,
     "liquidity_score": 0.912
    },
    {
     "venue": "polymarket",
     "implied_p": 0.7366,
     "market_id": "major-hurricane-us-landfall-2026",
     "volume_24h_usd": 204188.49,
     "liquidity_score": 0.921
    }
   ],
   "divergence": 0.0088,
   "probability": 0.7325,
   "current_slug": "major-hurricane-us-landfall-2026",
   "last_move_1h": 0.0007,
   "topic_question": "Will the next major hurricane (Cat 3+) make US landfall?",
   "resolution_date": "2026-11-30",
   "rolls_to_next_at": "2026-11-30",
   "resolution_criteria_summary": "Resolves YES on an NHC-confirmed Cat 3+ landfall on the US coast before Dec 1."
  },
  "meta": {
   "docs": "https://x402-factory.com/docs/probability.evergreen.next-hurricane-cat3-us-landfall",
   "sources": [
    "kalshi",
    "polymarket"
   ],
   "version": "1.0.0",
   "endpoint": "/v1/evergreen/next-hurricane-cat3-us-landfall",
   "data_mode": "live",
   "freshness": "realtime",
   "request_id": "req_00000000",
   "generated_at": "2026-08-21T03:58:58.093Z"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-factory-next-major-hurricane-cat-3-us-landfall-probability-56081bc8/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)