# Business Directory Coverage — Equal-Width Histogram + Explicit Missing-Value Fill

> Business Directory Coverage — Equal-Width Histogram + Explicit Missing-Value Fill 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).

Generates an equal-width histogram and fills missing values for business directory coverage metrics (listed_entities, verified_entities) across up to 200 supplied rows, producing 2 analytical reports.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-ib26-company-14-175?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-equal-width-histogram-explicit-missing-a2a4d4e4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_n5f7m2I7Rg7cpJbIkLH_F

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-equal-width-histogram-explicit-missing-a2a4d4e4 -d '<json body>'
```

Example prompt: I have 4 rows of business directory coverage data with listed_entities and verified_entities values — some are null. Can you run a 5-bin equal-width histogram on listed_entities and fill the missing values using the median, across these rows: row-1/group-a/2026-10-01 with listed=10, verified=1; row-2/group-b/2026-10-02 with listed=20, verified=2; row-3/group-a/2026-10-03 with listed=15, verified=null; row-4/group-b/2026-10-04 with listed=30, verified=4?

## When to prefer this

Choose this endpoint when you have tabular business directory coverage data (listed_entities, verified_entities) and need both a frequency distribution histogram and missing-value imputation in a single API call. It is ideal for lightweight, local statistical analysis without any live data lookup, prediction, or external enrichment. Prefer this over generic stats APIs when your data matches the business directory schema with company_group and date dimensions.

## Known failure modes

- More than 200 rows submitted — request rejected
- Invalid date format (not YYYY-MM-DD) causes row-level validation error
- bins value outside 1–30 range causes rejection
- All values for the selected field are null, making histogram impossible
- row_id missing or empty string causes schema validation failure
- field enum value not one of listed_entities or verified_entities causes error

## How this service works

Business directory coverage — Equal-width histogram + Explicit missing-value fill: Equal-width histogram + Explicit missing-value fill 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 analytical reports: (1) an equal-width histogram showing bin edges and counts for the selected field (listed_entities or verified_entities) across up to 200 rows, and (2) the same dataset with missing values explicitly filled using the chosen method (zero, mean, or median). 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",
     "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"
  },
  "method": {
   "enum": [
    "zero",
    "mean",
    "median"
   ],
   "type": "string",
   "default": "median"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/business-directory-coverage-equal-width-histogram-explicit-missing-a2a4d4e4/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)