# Label Review Analytics: Grouped Numeric Summary + Equal-Width Histogram

> Label Review Analytics: Grouped Numeric Summary + Equal-Width Histogram is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-15).

Computes a grouped numeric summary and an equal-width histogram for label review data (reviewed_records and changed_labels) across up to 200 rows.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-ib26-analytics-12-093?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/label-review-analytics-grouped-numeric-summary-equal-width-histogram-4bd3ea99
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_wzuAIA8OQuGm7djy4wyl4

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 label-review-analytics-grouped-numeric-summary-equal-width-histogram-4bd3ea99 -d '<json body>'
```

Example prompt: Can you run a grouped numeric summary and a 10-bin equal-width histogram on my label review data for the reviewed_records field? I have records across two groups — group-a and group-b — with dates ranging from 2024-01-01 to 2024-01-04.

## When to prefer this

Choose this endpoint when you have label review or annotation pipeline data and need both a grouped statistical summary and a histogram in a single low-cost call. It is purpose-built for MLOps and data labeling workflows where you want to understand distribution and group-level differences in reviewed_records or changed_labels without setting up local analytics infrastructure. Prefer this over general-purpose analytics APIs when your data fits the label review schema and you need results fast for up to 200 rows.

## Known failure modes

- Empty or missing rows array returns an error
- More than 200 rows submitted exceeds the limit and will be rejected
- Invalid date format (not YYYY-MM-DD) causes validation failure
- bins value outside 1–30 range is rejected
- Null values in reviewed_records or changed_labels may affect summary statistics
- Invalid field enum value (not 'reviewed_records' or 'changed_labels') causes an error
- Payment of 0.01 USDC not received results in 402 response

## How this service works

Label review — Grouped numeric summary + Equal-width histogram: Grouped numeric summary + Equal-width histogram for supplied label review records (reviewed_records, changed_labels). 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 for the supplied label review records: (1) a grouped numeric summary breaking down statistics (e.g. count, mean, min, max) for the selected field (reviewed_records or changed_labels) by dataset_group, and (2) an equal-width histogram showing frequency distribution of the selected field divided into the specified number of bins (1–30, default 5). All computation is performed locally on the supplied data with no external lookups.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "bins": {
   "type": "integer",
   "default": 5,
   "maximum": 30,
   "minimum": 1
  },
  "rows": {
   "type": "array",
   "items": {
    "type": "object",
    "required": [
     "row_id",
     "dataset_group",
     "date",
     "reviewed_records",
     "changed_labels"
    ],
    "properties": {
     "date": {
      "type": "string",
      "default": "",
      "pattern": "^\\d{4}-\\d{2}-\\d{2}$",
      "maxLength": 10
     },
     "row_id": {
      "type": "string",
      "default": "",
      "maxLength": 80,
      "minLength": 1
     },
     "dataset_group": {
      "type": "string",
      "default": "",
      "maxLength": 80
     },
     "changed_labels": {
      "type": [
       "number",
       "null"
      ],
      "maximum": 1000000000000,
      "minimum": -1000000000000
     },
     "reviewed_records": {
      "type": [
       "number",
       "null"
      ],
      "maximum": 1000000000000,
      "minimum": -1000000000000
     }
    },
    "additionalProperties": false
   },
   "default": [
    {
     "date": "2026-10-01",
     "row_id": "row-1",
     "dataset_group": "group-a",
     "changed_labels": 1,
     "reviewed_records": 10
    },
    {
     "date": "2026-10-02",
     "row_id": "row-2",
     "dataset_group": "group-b",
     "changed_labels": 2,
     "reviewed_records": 20
    },
    {
     "date": "2026-10-03",
     "row_id": "row-3",
     "dataset_group": "group-a",
     "changed_labels": 3,
     "reviewed_records": 15
    },
    {
     "date": "2026-10-04",
     "row_id": "row-4",
     "dataset_group": "group-b",
     "changed_labels": 4,
     "reviewed_records": 30
    }
   ],
   "maxItems": 200,
   "minItems": 1
  },
  "field": {
   "enum": [
    "reviewed_records",
    "changed_labels"
   ],
   "type": "string",
   "default": "reviewed_records"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/label-review-analytics-grouped-numeric-summary-equal-width-histogram-4bd3ea99/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)