# x402 Hail History

> x402 Hail History is a paid API for AI agents from hail.kagurazaka.dev, paid per call via x402, $0.5/call, status unknown (last checked 2026-11-02).

Returns every day with hail at a US address or lat/lon over up to 5 years, including largest hail size per day from NOAA MRMS MESH radar data.

## Facts

- Endpoint: GET https://hail.kagurazaka.dev/v1/hail/history?utm_source=zero.xyz
- Price: $0.5/call
- Payment: x402
- Status: unknown
- Last checked: 2026-11-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-hail-history-920a0261
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_xsO-O10SwyW7ClslDaDbW

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-hail-history-920a0261
```

Example prompt: Can you pull the full hail history for 200 W 2nd St, Wichita, KS 67202 over the last 5 years, looking within 3 miles for hail of at least 0.75 inches, so I can check if the roof has been hit?

## When to prefer this

Choose this endpoint when you need a multi-year chronological log of all hail events at a specific US property or coordinate — ideal for insurance claim verification, roof age assessment, property due diligence, or any workflow requiring date-stamped hail size history. Prefer this over point-in-time hail lookups when you need the full historical picture across multiple events rather than a single date.

## Known failure modes

- Address not found or cannot be geocoded — request is not charged, returns a not-found result
- Invalid date range (e.g. before 2020-10-14 or future dates beyond available data)
- Invalid radius value (must be 1, 3, 5, or 10 miles)
- Minimum hail size out of range (must be 0.75 to 4 inches)
- No hail events found for the location/period — returns count:0 with empty days array
- Payment not completed via x402 protocol — request blocked

## How this service works

Every day with hail at a US address or lat/lon over up to 5 years (from 2020-10-14): the dates when NOAA's radar estimate of hail size (MRMS MESH) reached 0.75 inch or a size you choose within 1, 3, 5 or 10 miles, with the largest size each day. For property due diligence, roof age questions and claim history. Not found addresses are not charged.

## Output

A JSON object listing every day with hail at the queried location within the specified radius and size threshold, including the date, maximum nearby hail size, at-location hail size, a summary of the largest event, total count of hail days, the matched location coordinates, and any relevant notes about data coverage or geocoding.

## 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": {
      "to": {
       "type": "string",
       "description": "last day, YYYY-MM-DD; default the latest day available"
      },
      "lat": {
       "type": "number",
       "description": "latitude, instead of address"
      },
      "lon": {
       "type": "number",
       "description": "longitude, instead of address"
      },
      "from": {
       "type": "string",
       "description": "first day, YYYY-MM-DD; default 5 years before to"
      },
      "address": {
       "type": "string",
       "description": "a US street address on one line, such as 200 W 2nd St, Wichita, KS 67202"
      },
      "radius_mi": {
       "enum": [
        1,
        3,
        5,
        10
       ],
       "type": "integer",
       "description": "radius in miles, default 3"
      },
      "min_size_in": {
       "type": "number",
       "description": "smallest hail size to count, inches, 0.75 (default) to 4"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "to": {},
      "days": {},
      "from": {},
      "count": {},
      "notes": {},
      "largest": {},
      "location": {},
      "radius_mi": {},
      "min_size_in": {}
     }
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "to": "2025-05-16",
  "days": [
   {
    "date": "2025-05-16",
    "max_size_in": 2.19,
    "at_location_in": 1.08
   }
  ],
  "from": "2025-05-16",
  "count": 1,
  "notes": [
   "..."
  ],
  "largest": {
   "date": "2025-05-16",
   "max_size_in": 2.19
  },
  "location": {
   "lat": 37.1,
   "lon": -88.96,
   "input": "37.1,-88.96",
   "matched": "37.1, -88.96",
   "geocoder": "none"
  },
  "radius_mi": 3,
  "min_size_in": 0.75
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-hail-history-920a0261/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from hail.kagurazaka.dev](https://www.zero.xyz/host/hail.kagurazaka.dev/llms.txt)