# Business Directory Coverage — IQR Outlier Flags + Two-Measure Correlation

> Business Directory Coverage — IQR Outlier Flags + 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 2026-10-20).

Runs IQR-based outlier detection and two-measure correlation analysis on supplied business directory coverage records (listed_entities, verified_entities) for up to 200 rows.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-ib26-company-14-176?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-20
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/business-directory-coverage-iqr-outlier-flags-two-measure-correlation-60ee7d30
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_pAiftEAvUGTiXhmFjq8sS

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 business-directory-coverage-iqr-outlier-flags-two-measure-correlation-60ee7d30 -d '<json body>'
```

Example prompt: Can you run IQR outlier detection and a two-measure correlation check on my business directory coverage data? Here are up to 200 rows with row_id, company_group, date, listed_entities, and verified_entities — flag any outliers and tell me how correlated those two measures are.

## When to prefer this

Choose this endpoint when you need both IQR-based outlier detection and a correlation analysis on business directory coverage data (listed_entities and verified_entities) in a single low-cost call. It is ideal for data quality checks, anomaly detection pipelines, and coverage audits on datasets up to 200 rows where no live lookup or external enrichment is needed.

## Known failure modes

- Fewer than 1 row submitted — request rejected
- More than 200 rows submitted — exceeds limit, request rejected
- Missing required fields (row_id, date, listed_entities, verified_entities) — validation error
- Date strings not matching YYYY-MM-DD pattern — schema validation failure
- All values null for a measure — correlation or IQR computation may return undefined/null result
- Malformed JSON body — parse error returned

## How this service works

Business directory coverage — IQR outlier flags + Two-measure correlation: IQR outlier flags + Two-measure correlation for supplied business directory coverage records (listed_entities, verified_entities). 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) IQR outlier flags identifying which rows have anomalous values in the selected measure, and (2) a correlation report measuring the relationship between listed_entities and verified_entities across the supplied rows. No external data is fetched; analysis is performed locally on the submitted dataset.

## Request schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/business-directory-coverage-iqr-outlier-flags-two-measure-correlation-60ee7d30/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)