# Weather Anomaly Multi-City Ranker

> Weather Anomaly Multi-City Ranker is a paid API for AI agents from store.cryptotradecalc.com, paid per call via x402, $0.012/call, status unknown (last checked 2026-09-13).

Compares today's temperature across multiple cities against their 30-day historical norms, reporting how many standard deviations each city deviates from its baseline

## Facts

- Endpoint: GET https://store.cryptotradecalc.com/api/weather-anomaly
- Price: $0.012/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/weather-anomaly-multi-city-ranker-c4ced3fa
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ZHNEucKifxHM-o7Man5kZ

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 weather-anomaly-multi-city-ranker-c4ced3fa
```

Example prompt: Which of these cities has the most abnormal weather today — New York, London, Tokyo, and Sydney — and how many standard deviations is each one away from its 30-day norm?

## When to prefer this

Choose this endpoint when you need to statistically compare how anomalous today's weather is across multiple cities simultaneously relative to their own historical baselines — not just raw temperature comparisons. Ideal for detecting weather outliers, flagging unusual conditions, or ranking cities by meteorological deviation rather than absolute temperature.

## Known failure modes

- Invalid or unrecognized city names return an error or empty results
- Missing 'cities' query parameter may cause a 400 bad request
- Open-Meteo upstream unavailability leads to 502 or timeout errors
- Cities with insufficient historical data may return null or low-confidence anomaly scores
- Malformed query string (e.g. wrong delimiter) may cause parsing failures

## How this service works

weather-anomaly-compare: Multi-city weather anomaly ranker that reports how many standard deviations today deviates from a city's 30‑day norm via Open-Meteo.

## Output

A ranked list of cities showing how many standard deviations today's temperature deviates from each city's 30-day historical norm, indicating which locations are experiencing the most statistically unusual weather conditions today.

## Request schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/weather-anomaly-multi-city-ranker-c4ced3fa/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from store.cryptotradecalc.com](https://www.zero.xyz/host/store.cryptotradecalc.com/llms.txt)