# Business Directory Coverage — Daily Sum Series + Two-Measure Correlation

> Business Directory Coverage — Daily Sum 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 2026-10-25).

Computes daily sum time series and Pearson correlation between listed_entities and verified_entities from supplied business directory coverage data (up to 200 rows, 2 reports per call).

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-ib26-company-14-141?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-25
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/business-directory-coverage-daily-sum-series-two-measure-correlation-7a601a2a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_b3_7V6bRqqmbzxK4dpad9

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-daily-sum-series-two-measure-correlation-7a601a2a -d '<json body>'
```

Example prompt: I have business directory coverage data for two company groups across several dates — can you compute the daily sum series for listed_entities and also run a correlation between listed_entities and verified_entities? Here are 4 rows: 2026-10-01 group-a listed=10 verified=1, 2026-10-02 group-b listed=20 verified=2, 2026-10-03 group-a listed=15 verified=3, 2026-10-04 group-b listed=30 verified=4.

## When to prefer this

Choose this endpoint when you have up to 200 rows of business directory coverage data with date, company group, listed entity counts, and verified entity counts, and you need both a daily aggregated sum series AND a two-measure correlation in a single low-cost call ($0.01 USDC). It is ideal for offline/supplied-data analytics where no external data fetch or prediction is needed — just fast local computation on data you already have.

## Known failure modes

- Input rows array empty or missing — returns validation error
- More than 200 rows supplied — rejected with maxItems error
- Invalid date format (not YYYY-MM-DD) — schema validation failure
- Non-numeric values in listed_entities or verified_entities — type error
- Missing required fields (row_id, date, company_group) — schema rejection
- Payment not included or insufficient — x402 payment required response

## How this service works

Business directory coverage — Daily sum series + Two-measure correlation: Daily sum 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 independent analytical reports: (1) a daily sum series aggregating the chosen field (listed_entities or verified_entities) across all rows by date, and (2) a Pearson (or equivalent) correlation coefficient between listed_entities and verified_entities across the supplied rows. Both reports are computed locally from supplied data with no external lookup.

## 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-daily-sum-series-two-measure-correlation-7a601a2a/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)