# Job Listing Inventories — Numeric Row Ordering + Two-Measure Correlation

> Job Listing Inventories — Numeric Row Ordering + 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 2026-10-23).

Sorts job listing inventory rows numerically and computes the correlation between listing_count and duplicate_listings for up to 200 supplied records, returning two analytical reports.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-ib26-company-13-120?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-23
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/job-listing-inventories-numeric-row-ordering-two-measure-correlation-30d158c1
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_rYbC1faL4WowPAqI48A6m

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 job-listing-inventories-numeric-row-ordering-two-measure-correlation-30d158c1 -d '<json body>'
```

Example prompt: Can you rank my job listing inventory rows by listing_count and also calculate the correlation between listing_count and duplicate_listings? Here are my records: row-1 group-a 2026-10-01 listing_count=10 duplicate_listings=1, row-2 group-b 2026-10-02 listing_count=20 duplicate_listings=2, row-3 group-a 2026-10-03 listing_count=15 duplicate_listings=3 — I want both the ordered rows and the two-measure correlation report.

## When to prefer this

Choose this endpoint when you have up to 200 job listing inventory records and need both a numeric ordering and a two-measure correlation between listing_count and duplicate_listings in a single $0.01 call. It is ideal for offline batch analysis of already-collected data where no live data retrieval, prediction, or external enrichment is required. Prefer alternatives if you need more than two measures, more than 200 rows, or real-time data sourcing.

## Known failure modes

- Fewer than 1 or more than 200 rows submitted — request rejected
- Missing required fields (row_id, date, listing_count, or duplicate_listings) on any row — validation error
- Invalid date format (not YYYY-MM-DD) — schema validation failure
- Null values in both measure columns preventing correlation computation
- Field enum value not 'listing_count' or 'duplicate_listings' — schema rejection

## How this service works

Job listing inventories — Numeric row ordering + Two-measure correlation: Numeric row ordering + Two-measure correlation for supplied job listing inventories records (listing_count, duplicate_listings). 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 reports: (1) the input rows reordered numerically by the selected field (listing_count or duplicate_listings), and (2) a Pearson or equivalent correlation coefficient between listing_count and duplicate_listings across all supplied rows. No external data is fetched; all computation is performed locally on the submitted records.

## Request schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/job-listing-inventories-numeric-row-ordering-two-measure-correlation-30d158c1/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)