# Business Directory Coverage — Base-100 Series + Two-Measure Correlation

> Business Directory Coverage — Base-100 Series + 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 2026-10-16).

Computes a Base-100 index series and a two-measure correlation report for supplied business directory coverage data (listed_entities, verified_entities) across up to 200 rows.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-ib26-company-14-165?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/business-directory-coverage-base-100-series-two-measure-correlation-07ade038
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_q6We2MS4bu6tgkNgqfTMh

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-base-100-series-two-measure-correlation-07ade038 -d '<json body>'
```

Example prompt: Can you index my business directory coverage data to a base-100 series and also show me the correlation between listed_entities and verified_entities? I have 4 rows — group-a on 2026-10-01 with 10 listed and 1 verified, group-b on 2026-10-02 with 20 listed and 2 verified, group-a on 2026-10-03 with 15 listed and 3 verified, and group-b on 2026-10-04 with 30 listed and 4 verified — use row 0 as the base index and index the listed_entities field.

## When to prefer this

Choose this endpoint when you need both a time-indexed Base-100 normalization and a pairwise correlation report on business directory coverage metrics (listed vs verified entities) in a single paid call. Ideal for agents working with structured directory audit data that is already available locally, where no live data lookup, prediction, or external enrichment is needed. At $0.01 USDC for two reports on up to 200 rows, it is cost-effective for batch analytical passes over directory snapshots.

## Known failure modes

- Fewer than 1 row submitted — validation error
- More than 200 rows submitted — rejected with maxItems error
- base_index value out of range for supplied rows — index error
- Missing required fields (row_id, date, listed_entities, verified_entities) — schema validation failure
- Non-date-formatted string in date field — pattern validation error
- Null values in both measure columns — correlation undefined or NaN result

## How this service works

Business directory coverage — Base-100 series + Two-measure correlation: Base-100 series + 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 analytical reports: (1) a Base-100 index series showing how the selected field (listed_entities or verified_entities) evolves relative to the chosen base row, and (2) a two-measure Pearson-style correlation between listed_entities and verified_entities across all supplied rows. Both reports are computed locally from the submitted data with no external lookups.

## 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"
  },
  "base_index": {
   "type": "integer",
   "default": 0,
   "maximum": 199,
   "minimum": 0
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/business-directory-coverage-base-100-series-two-measure-correlation-07ade038/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)