# Null Coverage Analyzer — Numeric Row Ordering & Date-by-Category Pivot

> Null Coverage Analyzer — Numeric Row Ordering & Date-by-Category Pivot is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-16).

Generates two analytical reports on null/missing-value coverage data: a numeric row ordering report and a date-by-category pivot table, for up to 200 supplied rows.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-ib26-analytics-03-122?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/null-coverage-analyzer-numeric-row-ordering-date-by-category-pivot-3e753471
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_YB_t5MNRsPK5zwn4sEJfd

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 null-coverage-analyzer-numeric-row-ordering-date-by-category-pivot-3e753471 -d '<json body>'
```

Example prompt: Can you run a null coverage analysis on my dataset records — I have rows with row_id, dataset_group, date, missing_values, and total_values fields — and give me both a numeric row ordering report and a date-by-category pivot on the missing_values field? Here are up to 200 rows of data.

## When to prefer this

Choose this endpoint when you have tabular null-coverage data (missing_values + total_values per row, group, and date) and need both a ranked row-ordering view and a pivot breakdown by date and category in a single low-cost call. It is purpose-built for data quality and completeness analysis workflows, not for general-purpose pivot or sorting tasks involving other data shapes.

## Known failure modes

- Empty or missing rows array returns a validation error
- Rows exceeding 200 items are rejected (maxItems constraint)
- Invalid date format (not YYYY-MM-DD) causes schema validation failure
- Null values in missing_values or total_values may affect numeric ordering output
- Invalid field enum value (not 'missing_values' or 'total_values') returns an error
- Missing required fields (row_id, dataset_group, date) cause per-row validation failure

## How this service works

Null coverage — Numeric row ordering + Date by category pivot: Numeric row ordering + Date by category pivot for supplied null coverage records (missing_values, total_values). 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 structured analytical reports derived from the supplied rows: (1) a numeric row ordering report ranking rows by the selected field (missing_values or total_values), and (2) a date-by-category pivot table grouping the selected field by date and dataset_group. No external data is fetched; all analysis is performed on the submitted records.

## Request schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/null-coverage-analyzer-numeric-row-ordering-date-by-category-pivot-3e753471/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)