# Snow Observations — Duplicate Key Report + Grouped Numeric Summary

> Snow Observations — Duplicate Key Report + Grouped Numeric Summary is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-23).

Analyzes up to 200 snow observation records to produce a duplicate key report and a grouped numeric summary for snow_depth_cm or snowfall_cm fields.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-ib26-weather-09-056?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-23
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/snow-observations-duplicate-key-report-grouped-numeric-summary-c7310b58
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_nUnMhmWStHoTbcqWM4-Yj

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 snow-observations-duplicate-key-report-grouped-numeric-summary-c7310b58 -d '<json body>'
```

Example prompt: Check these 4 snow observation records for duplicate row IDs and give me a grouped numeric summary for snow_depth_cm by station group: row-1 on 2026-10-01 with snow_depth_cm=10 and snowfall_cm=1 in group-a, row-2 on 2026-10-02 with snow_depth_cm=20 and snowfall_cm=2 in group-b, row-3 on 2026-10-03 with snow_depth_cm=15 and snowfall_cm=3 in group-a, and row-4 on 2026-10-04 with snow_depth_cm=30 and snowfall_cm=4 in group-b.

## When to prefer this

Choose this endpoint when you need both duplicate key detection and grouped numeric analytics on snow observation data (snow_depth_cm or snowfall_cm) in a single low-cost call. It is ideal for data quality workflows that process batches of up to 200 weather station records offline, without needing live weather lookup, forecasting, or external data enrichment.

## Known failure modes

- Exceeding 200 rows returns a validation error
- Missing required fields (row_id, date, station_group, snow_depth_cm, snowfall_cm) cause request rejection
- Invalid date format (non-YYYY-MM-DD) triggers a pattern validation error
- Submitting zero rows returns a minItems validation error
- Payment failure (insufficient USDC) prevents processing

## How this service works

Snow observations — Duplicate key report + Grouped numeric summary: Duplicate key report + Grouped numeric summary for supplied snow observations records (snow_depth_cm, snowfall_cm). Up to 200 rows; 2 independent reports using shared local analytical engines. No live lookup, prediction, professional assessment or external action. 0.01 USDC includes 2 supplied-data reports for up to 200 rows.

## Output

Returns two independent reports: (1) a duplicate key report identifying any row_id values that appear more than once in the submitted records, and (2) a grouped numeric summary of the selected snow measurement field (snow_depth_cm or snowfall_cm) aggregated by station_group, including statistics such as count, mean, min, and max per group.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "rows": {
   "type": "array",
   "items": {
    "type": "object",
    "required": [
     "row_id",
     "station_group",
     "date",
     "snow_depth_cm",
     "snowfall_cm"
    ],
    "properties": {
     "date": {
      "type": "string",
      "default": "",
      "pattern": "^\\d{4}-\\d{2}-\\d{2}$",
      "maxLength": 10
     },
     "row_id": {
      "type": "string",
      "default": "",
      "maxLength": 80,
      "minLength": 1
     },
     "snowfall_cm": {
      "type": [
       "number",
       "null"
      ],
      "maximum": 1000000000000,
      "minimum": -1000000000000
     },
     "snow_depth_cm": {
      "type": [
       "number",
       "null"
      ],
      "maximum": 1000000000000,
      "minimum": -1000000000000
     },
     "station_group": {
      "type": "string",
      "default": "",
      "maxLength": 80
     }
    },
    "additionalProperties": false
   },
   "default": [
    {
     "date": "2026-10-01",
     "row_id": "row-1",
     "snowfall_cm": 1,
     "snow_depth_cm": 10,
     "station_group": "group-a"
    },
    {
     "date": "2026-10-02",
     "row_id": "row-2",
     "snowfall_cm": 2,
     "snow_depth_cm": 20,
     "station_group": "group-b"
    },
    {
     "date": "2026-10-03",
     "row_id": "row-3",
     "snowfall_cm": 3,
     "snow_depth_cm": 15,
     "station_group": "group-a"
    },
    {
     "date": "2026-10-04",
     "row_id": "row-4",
     "snowfall_cm": 4,
     "snow_depth_cm": 30,
     "station_group": "group-b"
    }
   ],
   "maxItems": 200,
   "minItems": 1
  },
  "field": {
   "enum": [
    "snow_depth_cm",
    "snowfall_cm"
   ],
   "type": "string",
   "default": "snow_depth_cm"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/snow-observations-duplicate-key-report-grouped-numeric-summary-c7310b58/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from market.datapackvibe.com](https://www.zero.xyz/host/market.datapackvibe.com/llms.txt)