# Content Length Observations — Duplicate Key Report + Numeric Row Ordering

> Content Length Observations — Duplicate Key Report + Numeric Row Ordering 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).

Analyzes up to 200 rows of content length data (word_count, heading_count) to produce a duplicate key report and a numeric row ordering report using local analytical engines.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-ib26-web-19-058?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/content-length-observations-duplicate-key-report-numeric-row-ordering-6eeb4da9
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_dEnrpPoLPabCUaMAn9Wwn

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 content-length-observations-duplicate-key-report-numeric-row-ordering-6eeb4da9 -d '<json body>'
```

Example prompt: Check my content dataset for duplicate row keys and rank the rows numerically by word_count — I have up to 50 records each with a row_id, site_group, date, word_count, and heading_count.

## When to prefer this

Choose this endpoint when you need both a duplicate key detection report and a numeric row ordering on content length metrics (word_count or heading_count) in a single low-cost call. Ideal for content audits, SEO data QA, or preprocessing pipelines where data integrity and ranking are both needed before further analysis. Best suited for datasets of up to 200 rows with no need for external data, predictions, or live lookups.

## Known failure modes

- More than 200 rows submitted — request will be rejected or truncated
- Missing required fields (row_id, date, site_group, word_count, heading_count) cause validation errors
- Invalid date format (non-YYYY-MM-DD) triggers pattern validation failure
- row_id exceeding 80 characters is rejected
- Null numeric values may affect ordering results

## How this service works

Content length observations — Duplicate key report + Numeric row ordering: Duplicate key report + Numeric row ordering for supplied content length observations records (word_count, heading_count). 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) a duplicate key report identifying rows sharing the same key values, and (2) a numeric row ordering ranking all input rows by the selected field (word_count or heading_count). Both reports are derived purely from the supplied data with no external lookups.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "rows": {
   "type": "array",
   "items": {
    "type": "object",
    "required": [
     "row_id",
     "site_group",
     "date",
     "word_count",
     "heading_count"
    ],
    "properties": {
     "date": {
      "type": "string",
      "default": "",
      "pattern": "^\\d{4}-\\d{2}-\\d{2}$",
      "maxLength": 10
     },
     "row_id": {
      "type": "string",
      "default": "",
      "maxLength": 80,
      "minLength": 1
     },
     "site_group": {
      "type": "string",
      "default": "",
      "maxLength": 80
     },
     "word_count": {
      "type": [
       "number",
       "null"
      ],
      "maximum": 1000000000000,
      "minimum": -1000000000000
     },
     "heading_count": {
      "type": [
       "number",
       "null"
      ],
      "maximum": 1000000000000,
      "minimum": -1000000000000
     }
    },
    "additionalProperties": false
   },
   "default": [
    {
     "date": "2026-10-01",
     "row_id": "row-1",
     "site_group": "group-a",
     "word_count": 10,
     "heading_count": 1
    },
    {
     "date": "2026-10-02",
     "row_id": "row-2",
     "site_group": "group-b",
     "word_count": 20,
     "heading_count": 2
    },
    {
     "date": "2026-10-03",
     "row_id": "row-3",
     "site_group": "group-a",
     "word_count": 15,
     "heading_count": 3
    },
    {
     "date": "2026-10-04",
     "row_id": "row-4",
     "site_group": "group-b",
     "word_count": 30,
     "heading_count": 4
    }
   ],
   "maxItems": 200,
   "minItems": 1
  },
  "field": {
   "enum": [
    "word_count",
    "heading_count"
   ],
   "type": "string",
   "default": "word_count"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/content-length-observations-duplicate-key-report-numeric-row-ordering-6eeb4da9/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)