# Label Review Analytics: Duplicate Key Report + Two-Measure Correlation

> Label Review Analytics: Duplicate Key Report + Two-Measure Correlation 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).

Analyzes label review records to produce a duplicate key report and a two-measure correlation analysis between reviewed_records and changed_labels for up to 200 rows.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-ib26-analytics-12-066?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-duplicate-key-report-two-measure-correlation-28723abc
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_lwWVH4yoG7Qa9AHt4ZwFn

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-duplicate-key-report-two-measure-correlation-28723abc -d '<json body>'
```

Example prompt: Can you run a duplicate key check and a correlation analysis on my label review data? I have 4 rows: row-1 on 2026-10-01 in group-a with 10 reviewed records and 1 changed label, row-2 on 2026-10-02 in group-b with 20 reviewed and 2 changed, row-3 on 2026-10-03 in group-a with 15 reviewed and 3 changed, and row-4 on 2026-10-04 in group-b with 30 reviewed and 4 changed.

## When to prefer this

Choose this endpoint when you need to simultaneously audit a label review dataset for duplicate row keys AND measure the correlation between reviewed_records and changed_labels in a single low-cost call. It is ideal for MLOps and annotation quality workflows where you want a quick, offline analytical check on up to 200 records without any external data enrichment, prediction, or live lookups. At $0.01 USDC for both reports, it is cost-effective compared to running separate general-purpose analytics services.

## Known failure modes

- Input array is empty or missing — validation error returned
- More than 200 rows submitted — request rejected with max-items error
- Row missing required fields (row_id, date, reviewed_records, changed_labels) — schema validation failure
- Date field does not match YYYY-MM-DD pattern — format validation error
- Numeric fields out of allowed range (±1,000,000,000,000) — validation error
- All reviewed_records or changed_labels values are null — correlation cannot be computed

## How this service works

Label review — Duplicate key report + Two-measure correlation: Duplicate key report + Two-measure correlation 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) a duplicate key report identifying any repeated row_id values within the submitted dataset, and (2) a two-measure correlation report quantifying the statistical relationship between reviewed_records and changed_labels across all submitted rows. Coverage is up to 200 rows per call with no external lookups performed.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "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
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/label-review-analytics-duplicate-key-report-two-measure-correlation-28723abc/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)