# Label Review Analytics: Daily Sum Series + Equal-Width Histogram

> Label Review Analytics: Daily Sum Series + 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).

Generates two local analytical reports — a daily sum time series and an equal-width histogram — for label review data (reviewed_records or changed_labels) across up to 200 rows.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-ib26-analytics-12-139?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-daily-sum-series-equal-width-histogram-caf96cc3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_DAD7S4N2sFo3cwD42nkZj

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-daily-sum-series-equal-width-histogram-caf96cc3 -d '<json body>'
```

Example prompt: Can you run a daily sum time series and a 10-bin equal-width histogram on my label review records for the changed_labels field? I have about 50 rows with dates, dataset groups, reviewed_records, and changed_labels values.

## When to prefer this

Choose this endpoint when you have up to 200 rows of label review tabular data and need two quick statistical summaries — a time series and a histogram — computed locally without any external API calls, live predictions, or data leaving your context. It is ideal for lightweight MLOps annotation auditing, QA pipelines, or data labeling team dashboards where you want both temporal aggregation and distributional insight in a single low-cost call.

## Known failure modes

- More than 200 rows submitted — request exceeds the maxItems limit and will be rejected
- Invalid date format — dates not matching YYYY-MM-DD pattern will fail schema validation
- Missing required row fields (row_id, dataset_group, date, reviewed_records, changed_labels) cause validation errors
- bins value outside 1–30 range returns a validation error
- Null values in the chosen field may affect histogram bin boundaries or daily sums
- No rows provided — minItems:1 means an empty array will be rejected

## How this service works

Label review — Daily sum series + Equal-width histogram: Daily sum series + 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 independent analytical reports computed locally on the supplied data: (1) a daily sum series showing the aggregated total of the chosen field (reviewed_records or changed_labels) per calendar date, and (2) an equal-width histogram partitioning the chosen field values into the specified number of bins with counts per bin. No external lookups or predictions are performed.

## 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-daily-sum-series-equal-width-histogram-caf96cc3/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)