# Aviation Weather SIGMET/AIRMET Hazard Advisor

> Aviation Weather SIGMET/AIRMET Hazard Advisor is a paid API for AI agents from aviation-weather.x402tookit.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-30).

Returns active US SIGMETs and AIRMETs filtered by hazard type (convective, turbulence, icing, IFR, mountain obscuration, volcanic ash) with altitudes and validity windows.

## Facts

- Endpoint: GET https://aviation-weather.x402tookit.com/sigmets?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-30
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/aviation-weather-sigmet-airmet-hazard-advisor-497267d0
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_2dIZj1ggEbzjaFTh9nF4e

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 aviation-weather-sigmet-airmet-hazard-advisor-497267d0
```

Example prompt: Are there any active icing SIGMETs or AIRMETs right now? Filter for ICE hazard and tell me the altitude ranges and how long they're valid.

## When to prefer this

Use this endpoint when you need current US SIGMET or AIRMET hazard advisories for flight safety planning, pre-flight briefings, or real-time airspace monitoring. It is ideal for filtering by a specific hazard type rather than ingesting all advisories at once. Prefer this over general weather endpoints when the user needs aviation-specific hazard information with altitude bands and validity windows rather than airport-level conditions.

## Known failure modes

- Invalid hazard enum value returns an error (valid values: CONVECTIVE, TURB, ICE, IFR, MTN OBSCN, ASH)
- Upstream aviation weather data source unavailable — degraded flag set to true with partial or null results
- No active advisories for the requested hazard — returns empty advisories array with active count of 0
- Network timeout reaching upstream NOAA/FAA data feed
- Stale data if upstream source has not refreshed recently

## How this service works

Active US SIGMETs and AIRMETs by hazard: convective, turbulence, icing, volcanic ash, with altitudes and validity.

## Output

Returns a structured response with the total count of active advisories, a breakdown by hazard type, a plain-language summary and verdict, a list of individual advisories each containing type, hazard, raw text, validity end time, severity score, altitude low/high in feet, and movement direction/speed in knots. Also includes the data source URL, timestamp, and any degraded-service flags.

## 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": {
      "hazard": {
       "type": "string",
       "description": "Only this hazard: CONVECTIVE, TURB, ICE, IFR, MTN OBSCN, ASH"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "asOf": {
       "type": [
        "null",
        "string"
       ]
      },
      "active": {
       "type": [
        "null",
        "number"
       ]
      },
      "source": {
       "type": [
        "null",
        "string"
       ]
      },
      "reasons": {
       "type": [
        "array",
        "null"
       ],
       "items": {
        "type": "string"
       }
      },
      "sigmets": {
       "type": [
        "null",
        "number"
       ]
      },
      "summary": {
       "type": [
        "null",
        "string"
       ]
      },
      "verdict": {
       "type": [
        "null",
        "string"
       ]
      },
      "byHazard": {
       "type": [
        "null",
        "object"
       ],
       "properties": {
        "CONVECTIVE": {
         "type": [
          "null",
          "number"
         ]
        }
       }
      },
      "degraded": {
       "type": [
        "boolean",
        "null"
       ]
      },
      "sourceUrl": {
       "type": [
        "null",
        "string"
       ]
      },
      "advisories": {
       "type": [
        "array",
        "null"
       ],
       "items": {
        "type": "object",
        "properties": {
         "text": {
          "type": [
           "null",
           "string"
          ]
         },
         "type": {
          "type": [
           "null",
           "string"
          ]
         },
         "hazard": {
          "type": [
           "null",
           "string"
          ]
         },
         "validTo": {
          "type": [
           "null",
           "string"
          ]
         },
         "severity": {
          "type
… (truncated)
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/aviation-weather-sigmet-airmet-hazard-advisor-497267d0/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from aviation-weather.x402tookit.com](https://www.zero.xyz/host/aviation-weather.x402tookit.com/llms.txt)