# Job Listing Inventories — Numeric Row Ordering + Secondary-Measure Weighted Mean

> Job Listing Inventories — Numeric Row Ordering + Secondary-Measure Weighted Mean is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-11-02).

Computes numeric row ordering and a duplicate_listings-weighted mean for job listing inventory records (listing_count, duplicate_listings) across up to 200 rows, returning two analytical reports.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-ib26-company-13-121?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-11-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/job-listing-inventories-numeric-row-ordering-secondary-measure-59eb3031
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_OmGPMnUYO9bDlOTR0w1KQ

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-secondary-measure-59eb3031 -d '<json body>'
```

Example prompt: I have job listing inventory data for two company groups across four dates — 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, row-4 group-b 2026-10-04 listing_count 30 duplicate_listings 4 — can you rank these rows numerically by listing_count and also give me the duplicate-listings-weighted mean for listing_count?

## When to prefer this

Choose this endpoint when you need both numeric row ranking and a secondary-measure weighted mean on job listing inventory data (listing_count, duplicate_listings) in a single low-cost call. Ideal for datasets up to 200 rows where all data is already available locally and no external lookup, prediction, or live data is required. Prefer over generic analytics tools when you specifically need the duplicate-listings-weighted mean pattern on recruitment inventory data.

## Known failure modes

- More than 200 rows submitted — request rejected due to maxItems constraint
- Missing required fields (row_id, date, listing_count, duplicate_listings) — validation error
- Date field not matching YYYY-MM-DD pattern — schema validation failure
- Null values in both listing_count and duplicate_listings making weighted mean undefined
- Empty rows array — rejected due to minItems:1 constraint

## How this service works

Job listing inventories — Numeric row ordering + Secondary-measure weighted mean: Numeric row ordering + Secondary-measure weighted mean 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 local analytical reports: (1) numeric row ordering of the supplied records by the chosen field (listing_count or duplicate_listings), and (2) a weighted mean of the primary field using the secondary measure as weights, computed across up to 200 input rows. No external data is fetched; all computation is performed on the supplied data.

## 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-secondary-measure-59eb3031/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)