# Label Review Analytics: Equal-Width Histogram + Keyed Dataset Comparison

> Label Review Analytics: Equal-Width Histogram + Keyed Dataset Comparison 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).

Generates two analytical reports—an equal-width histogram and a keyed dataset comparison—for label review records tracking reviewed_records and changed_labels, for up to 200 rows.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-ib26-analytics-12-174?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-equal-width-histogram-keyed-dataset-comparison-88bb6e54
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_yZ13S0R5d3CwsbmYboqxk

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-equal-width-histogram-keyed-dataset-comparison-88bb6e54 -d '<json body>'
```

Example prompt: Run an equal-width histogram and keyed dataset comparison on my label review data — I have 50 rows with reviewed_records and changed_labels fields across two dataset groups, use 10 bins and analyze the reviewed_records field. Here's the primary dataset and a second comparison dataset with the same structure.

## When to prefer this

Choose this endpoint when you need both a statistical distribution view (histogram) and a side-by-side keyed comparison of two label review datasets in a single call, specifically for annotation/labeling workflows tracking reviewed_records and changed_labels. Ideal when you already have the data locally and need offline-style analytics without external lookups or predictions. The $0.01 flat fee covers both reports for up to 200 rows, making it cost-effective for batch label QA tasks.

## Known failure modes

- Exceeds 200 row limit — request will be rejected or truncated
- Missing required fields (row_id, dataset_group, date, reviewed_records, changed_labels) cause validation errors
- bins parameter outside 1–30 range returns an error
- Mismatched row_id keys between primary and comparison dataset result in unmatched rows in the comparison report
- Null numeric values in reviewed_records or changed_labels may be excluded from histogram bins
- Invalid date format (not YYYY-MM-DD) causes schema validation failure

## How this service works

Label review — Equal-width histogram + Keyed dataset comparison: Equal-width histogram + Keyed dataset comparison 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 independent analytical reports: (1) an equal-width histogram showing bin boundaries and counts for the selected field (reviewed_records or changed_labels) across up to 200 rows, and (2) a keyed dataset comparison report matching rows by row_id between the primary and secondary dataset to surface differences in the numeric fields. Both reports are computed locally 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}$",
      "maxLength": 10
     },
     "row_id": {
      "type": "string",
      "default": "",
      "maxLength": 80,
      "minLength": 1
     },
     "dataset_group": {
      "type": "string",
      "default": "",
      "maxLength": 80
     },
     "changed_labels": {
      "type": [
       "number",
       "null"
      ],
      "maximum": 1000000000000,
      "minimum": -1000000000000
     },
     "reviewed_records": {
      "type": [
       "number",
       "null"
      ],
      "maximum": 1000000000000,
      "minimum": -1000000000000
     }
    },
    "additionalProperties": false
   },
   "default": [
    {
     "date": "2026-10-01",
     "row_id": "row-1",
     "dataset_group": "group-a",
     "changed_labels": 1,
     "reviewed_records": 10
    },
    {
     "date": "2026-10-02",
     "row_id": "row-2",
     "dataset_group": "group-b",
     "changed_labels": 2,
     "reviewed_records": 20
    },
    {
     "date": "2026-10-03",
     "row_id": "row-3",
     "dataset_group": "group-a",
     "changed_labels": 3,
     "reviewed_records": 15
    },
    {
     "date": "2026-10-04",
     "row_id": "row-4",
     "dataset_group": "group-b",
     "changed_labels": 4,
     "reviewed_records": 30
    }
   ],
   "maxItems": 200,
   "minItems": 1
  },
  "field": {
   "enum": [
    "reviewed_records",
    "changed_labels"
   ],
   "type": "string",
   "default": "reviewed_records"
  },
  "other": {
   "type": "array",
   "items": {
    "type": "object",
    "required": [
     "row_id",
     "dataset_group",
     "date",
     "reviewed_records",
     "changed_labels"
    ],
    "properties": {
     "date": {
      "type": "string",
      "default": "",
      "pattern": "^\\d{4}-\\d{2}-\\d{2}$",
      "maxLength": 10
     },
     "row_id": {
      "type": "string",
      "default": "",
      "maxLength": 80,
      "minLength": 1
     },
     "dataset_group": {
      "type": "string",
      "default": "",
      "maxLength": 80
     },
     "changed_labels": {
      "type": [
       "number",
       "null"
      ],
      "maximum": 1000
… (truncated)
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/label-review-analytics-equal-width-histogram-keyed-dataset-comparison-88bb6e54/health.json
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