# Null Coverage — Numeric Row Ordering + Base-100 Series

> Null Coverage — Numeric Row Ordering + Base-100 Series is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-16).

Computes numeric row ordering and a base-100 indexed series for supplied null coverage data (missing_values, total_values) across up to 200 rows, returning two analytical reports.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-ib26-analytics-03-117?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-numeric-row-ordering-base-100-series-88e2cdda
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_wTN8pywoBSWoGu8F43y5Y

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-numeric-row-ordering-base-100-series-88e2cdda -d '<json body>'
```

Example prompt: Rank and index my null coverage records by missing_values — I have 4 rows: row-1 on 2026-10-01 in group-a with 10 missing out of 1 total, row-2 on 2026-10-02 in group-b with 20 missing out of 2 total, row-3 on 2026-10-03 in group-a with 15 missing out of 3 total, and row-4 on 2026-10-04 in group-b with 30 missing out of 4 total — use base_index 0 and give me both the row ordering and the base-100 series reports.

## When to prefer this

Choose this endpoint when you need both numeric row ordering and a base-100 indexed time series computed together on null coverage data (missing_values, total_values) in a single low-cost call. Ideal for data quality workflows where you want to rank records and normalize them to a baseline index without hitting external APIs. Prefer over sibling endpoints when your specific need is row ordering plus base-100 series — other sibling endpoints offer different report pairs (e.g., histogram, grouped summary, or category frequencies).

## Known failure modes

- Empty or missing rows array returns a validation error
- row_id or date fields missing or malformed (wrong date format) cause rejection
- More than 200 rows submitted exceeds the maxItems limit and fails
- base_index out of range (>=number of rows) causes indexing failure
- Null values in the selected field may cause ranking or indexing issues
- Invalid field enum value (not 'missing_values' or 'total_values') causes error
- Payment not attached or insufficient USDC balance causes 402 response

## How this service works

Null coverage — Numeric row ordering + Base-100 series: Numeric row ordering + Base-100 series 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 analytical reports: (1) a numeric row ordering ranking the supplied rows by the chosen field (missing_values or total_values), and (2) a base-100 indexed series showing each row's value relative to the base_index row, both computed locally without external lookup or prediction.

## 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"
  },
  "base_index": {
   "type": "integer",
   "default": 0,
   "maximum": 199,
   "minimum": 0
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/null-coverage-numeric-row-ordering-base-100-series-88e2cdda/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)