# x402-factory Chicago Hourly Weather Forecast

> x402-factory Chicago Hourly Weather Forecast is a paid API for AI agents from x402-factory.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).

Returns an hourly weather forecast for Chicago (up to 168 hours) with temperature, precipitation probability, and wind speed, using NWS data bias-blended with a calibrated station model, with each data point labeled by its production method.

## Facts

- Endpoint: GET https://x402-factory.com/v1/forecast/chicago
- Price: $0.01/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-chicago-hourly-weather-forecast-bbc3479d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_WCQlv5OH5AZ0Knj301gbI

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-chicago-hourly-weather-forecast-bbc3479d
```

Example prompt: What's the hourly weather forecast for Chicago over the next 72 hours — temperature, rain chances, and wind — in imperial units?

## When to prefer this

Use this endpoint when you specifically need an hourly weather forecast for Chicago with method transparency (knowing whether each data point is NWS-derived or station-blended). Prefer this over a generic point forecast endpoint when Chicago is the fixed target location, saving the need to supply coordinates. Choose this over raw NWS data when you want bias-corrected, calibrated output with labeled provenance per hour.

## Known failure modes

- Invalid 'hours' value outside 1–240 range returns a validation error
- Invalid 'units' value (not 'metric' or 'imperial') causes a 422 error
- NWS data outage may result in degraded or partial forecast coverage
- Payment failure (x402 protocol) results in 402 response requiring USDC payment
- Requests beyond 168 hours may have reduced accuracy or coverage gaps

## How this service works

Hourly Chicago weather forecast (blend model, method labeled) — Hourly weather forecast for Chicago: temperature, precipitation probability, and wind, up to 168 hours out. NWS-derived series, bias-blended with our calibrated station model where covered — every response labels the method that produced it. Same shape as /v1/forecast/point with the Chicago coordinates built in.

## Output

An ordered hourly time series for Chicago (up to 168 hours by default, up to 240 hours maximum) containing: temperature (in requested units), precipitation probability (%), wind speed, and a method label per data point indicating whether that hour was produced by the NWS model or the x402-factory bias-blended calibrated station model. Response shape mirrors /v1/forecast/point with Chicago coordinates pre-applied.

## 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",
     "required": [],
     "properties": {
      "hours": {
       "type": "integer",
       "default": 48,
       "maximum": 240,
       "minimum": 1
      },
      "units": {
       "enum": [
        "metric",
        "imperial"
       ],
       "type": "string",
       "default": "imperial"
      }
     }
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-factory-chicago-hourly-weather-forecast-bbc3479d/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)