# Pressure Observations Numeric Row Ordering and Daily Sum Series

> Pressure Observations Numeric Row Ordering and Daily Sum Series 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).

Performs numeric row ordering and daily sum series analysis on up to 200 supplied pressure observation records (pressure_hpa, elevation_m), returning two analytical reports.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-ib26-weather-05-114?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/pressure-observations-numeric-row-ordering-and-daily-sum-series-85a9e1b7
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_c8E-unORIuDFj51qnZg9X

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 pressure-observations-numeric-row-ordering-and-daily-sum-series-85a9e1b7 -d '<json body>'
```

Example prompt: Rank my pressure observation rows numerically and give me a daily sum series for pressure_hpa — here are 4 records: row-1 on 2026-10-01 with pressure 1013.2 hPa at 150m elevation (group-a), row-2 on 2026-10-02 with 1009.5 hPa at 200m (group-b), row-3 on 2026-10-01 with 1011.0 hPa at 150m (group-a), row-4 on 2026-10-02 with 1007.3 hPa at 200m (group-b).

## When to prefer this

Choose this endpoint when you have up to 200 pressure observation records with date, station group, pressure, and elevation fields and need both a numerically ranked ordering and a daily aggregated sum series in a single affordable call ($0.01 USDC for both reports). It is a pure local computation endpoint — prefer it when you do not need live weather lookups, forecasts, or external data enrichment, just fast deterministic analytics on data you already have.

## Known failure modes

- More than 200 rows submitted — request rejected at schema validation
- Missing required fields (row_id, station_group, date, pressure_hpa, elevation_m) cause validation errors
- Invalid date format (non YYYY-MM-DD) causes schema rejection
- Null values in the selected field may affect sum and ordering results
- Invalid field enum value (anything other than pressure_hpa or elevation_m) causes an error

## How this service works

Pressure observations — Numeric row ordering + Daily sum series: Numeric row ordering + Daily sum series for supplied pressure observations records (pressure_hpa, elevation_m). 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

Two analytical reports: (1) a numeric row ordering of the supplied records ranked by the selected field (pressure_hpa or elevation_m), and (2) a daily sum series aggregating the selected field values by date across all provided rows. Both reports are computed locally from the supplied data with no external lookups.

## Request schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/pressure-observations-numeric-row-ordering-and-daily-sum-series-85a9e1b7/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)