# x402-factory Washington DC Window Weather Forecast

> x402-factory Washington DC Window Weather Forecast 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 rain probability, precipitation, temperature range, wind, comfort index, and a plain-language verdict for a specified time window in Washington, DC

## Facts

- Endpoint: GET https://x402-factory.com/v1/forecast/washington-dc/window
- 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-washington-dc-window-weather-forecast-c0fb0a9b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Jm_P-Oo2lsf6eJ08z49Vn

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-washington-dc-window-weather-forecast-c0fb0a9b
```

Example prompt: What are the rain odds and overall conditions in Washington DC this Saturday from 11am to 5pm — I'm planning an outdoor ceremony and need to know if it'll be comfortable or if there are any severe weather flags.

## When to prefer this

Use this endpoint when you need weather intelligence specifically for Washington, DC and want a pre-scoped, scheduling-oriented response rather than a raw forecast feed. Ideal when the question is 'should I hold this event?' rather than just 'what is the temperature?' — because the endpoint bundles rain probability, comfort index, severity flags, and a plain-language verdict in one call. The built-in DC coordinates eliminate the need to pass latitude/longitude. Prefer the generic /v1/forecast/window endpoint instead if the location is not Washington, DC.

## Known failure modes

- Invalid ISO-8601 datetime format for start or end — returns validation error
- Window exceeds 12-hour maximum — returns error indicating limit
- End time before start time — returns validation error
- Payment not provided or insufficient — returns 402 Payment Required
- Future window too far out — may return low-confidence or unavailable forecast

## How this service works

Will it rain in Washington, DC during your event window — Event-window weather odds for Washington, DC: pass a start and end time (or omit them for the next six hours) and get rain probability and expected conditions across the window — built for scheduling decisions. Same shape as /v1/forecast/window with the Washington, DC coordinates built in.

## Output

A JSON object containing: rain_probability (0–1 float), expected_precip_mm (float), temp_range with low and high values, wind_max (number), comfort_index (0–1 float), severity_flags (array of strings describing notable hazards), and verdict (plain-language summary of expected conditions) — all scoped to the requested time window in Washington, DC.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [],
     "properties": {
      "end": {
       "type": "string",
       "format": "date-time",
       "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d(?::[0-5]\\d(?:\\.\\d+)?)?(?:Z|([+-](?:[01]\\d|2[0-3]):[0-5]\\d)))$",
       "description": "Window end (ISO-8601), ≤12h after start. Default: start + 6h."
      },
      "start": {
       "type": "string",
       "format": "date-time",
       "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d(?::[0-5]\\d(?:\\.\\d+)?)?(?:Z|([+-](?:[01]\\d|2[0-3]):[0-5]\\d)))$",
       "description": "Window start (ISO-8601). Default: the top of the next hour."
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "required": [
      "data",
      "meta"
     ],
     "properties": {
      "data": {
       "type": "object",
       "required": [
        "rain_probability",
        "expected_precip_mm",
        "temp_range",
        "wind_max",
        "comfort_index",
        "severity_flags",
        "verdict"
       ],
       "properties": {
        "verdict": {
         "type": "string"
        },
        "wind_max": {
         "type": "number"
        },
        "temp_range": {
         "type": "object",
         "required": [
          "low",
          "high"
         ],
         "properties": {
          "low": {
           "type": "number"
          },
          "high": {
           "type": "number"
          }
         },
         "additionalProperties": false
        },
        "comfort_index": {
         "
… (truncated)
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-factory-washington-dc-window-weather-forecast-c0fb0a9b/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)