# Knowledge Base Maintenance — Exact Row Deduplication + Numeric Distribution

> Knowledge Base Maintenance — Exact Row Deduplication + Numeric Distribution 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).

Deduplicates rows and produces a numeric distribution report for knowledge base maintenance records (updated_articles, due_articles) across up to 200 rows.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-ib26-writing-16-039?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/knowledge-base-maintenance-exact-row-deduplication-numeric-distribution-b0c0f694
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_1E7S4VjI_sQyT40nI3y_6

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 knowledge-base-maintenance-exact-row-deduplication-numeric-distribution-b0c0f694 -d '<json body>'
```

Example prompt: I have 4 rows of KB maintenance data — row-1 through row-4 with dates 2026-10-01 to 2026-10-04, document groups group-a and group-b, and updated_articles values 10, 20, 15, 30 — can you deduplicate the exact rows and give me a numeric distribution report for the updated_articles field?

## When to prefer this

Choose this endpoint when you have up to 200 knowledge base maintenance records with updated_articles and due_articles fields and need both exact duplicate removal and a numeric distribution summary in a single low-cost ($0.01 USDC) call. Ideal for periodic data quality checks on KB tracking exports without needing live data access, external lookups, or predictions. Prefer over generic analytics tools when you specifically need these two bundled reports on document-group-based article tracking data.

## Known failure modes

- Input array is empty or exceeds 200 rows — request rejected
- Missing required fields (row_id, document_group, date, updated_articles, due_articles) on any row — validation error
- Date field does not match YYYY-MM-DD pattern — schema validation failure
- Field enum value not in ['updated_articles','due_articles'] — invalid input
- All rows are duplicates leaving no unique records — deduplication returns empty set
- Numeric values outside allowed range (-1e12 to 1e12) — rejected by schema validation

## How this service works

Knowledge base maintenance — Exact row deduplication + Numeric distribution: Exact row deduplication + Numeric distribution for supplied knowledge base maintenance records (updated_articles, due_articles). 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) an exact row deduplication result identifying and removing fully identical rows from the submitted dataset, and (2) a numeric distribution report summarizing the statistical spread (e.g. min, max, mean, percentiles, frequency counts) of the selected field (updated_articles or due_articles) across the supplied rows. No external data is fetched; all analysis is performed on the submitted rows only.

## Request schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/knowledge-base-maintenance-exact-row-deduplication-numeric-distribution-b0c0f694/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)