# Null Coverage Grouped Numeric Summary + Explicit Missing-Value Fill

> Null Coverage Grouped Numeric Summary + Explicit Missing-Value Fill 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 grouped numeric summaries and fills missing values (zero/mean/median) for null coverage records across up to 200 rows, delivering two analytical reports per call.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-ib26-analytics-03-099?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-grouped-numeric-summary-explicit-missing-value-fill-262cdddc
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_0YNwlbc_CyllErrgMVG1L

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-grouped-numeric-summary-explicit-missing-value-fill-262cdddc -d '<json body>'
```

Example prompt: I have 4 rows of null coverage data across two groups — group-a and group-b — with missing_values and total_values recorded for each day from 2026-10-01 to 2026-10-04. Can you run a grouped numeric summary and fill any missing values using median imputation on the missing_values field?

## When to prefer this

Choose this endpoint when you have up to 200 rows of null coverage data (missing_values, total_values) and need both a grouped numeric summary by dataset_group AND explicit missing-value imputation (zero, mean, or median) in a single $0.01 USDC call. Prefer it over general-purpose analytics tools when you want two bundled offline reports — no external data fetching, no prediction, just deterministic computation on your supplied records.

## Known failure modes

- Input array exceeds 200 rows — request rejected
- Missing required fields (row_id, dataset_group, date, missing_values, total_values) cause validation errors
- Invalid date format (not YYYY-MM-DD) causes schema rejection
- Unknown fill method value outside zero/mean/median enum causes error
- Empty rows array (minItems:1 violated) returns error
- Numeric values outside ±1,000,000,000,000 range rejected

## How this service works

Null coverage — Grouped numeric summary + Explicit missing-value fill: Grouped numeric summary + Explicit missing-value fill 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 per call: (1) a grouped numeric summary of the specified field (missing_values or total_values) aggregated by dataset_group, and (2) the same dataset with null/missing values explicitly filled using the chosen method (zero, mean, or median). All processing is performed locally on supplied data with no external lookups.

## 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"
  },
  "method": {
   "enum": [
    "zero",
    "mean",
    "median"
   ],
   "type": "string",
   "default": "median"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/null-coverage-grouped-numeric-summary-explicit-missing-value-fill-262cdddc/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)