# Knowledge Base Maintenance — Daily Sum Series + Adjacent Row Changes

> Knowledge Base Maintenance — Daily Sum Series + Adjacent Row Changes 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).

Computes a daily sum time series and adjacent-row delta report for knowledge base maintenance metrics (updated_articles, due_articles) across up to 200 rows, returning two analytical reports in one call.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-ib26-writing-16-137?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-daily-sum-series-adjacent-row-changes-105bc284
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_pa8910GhHZZx-FJ4SFeSv

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-daily-sum-series-adjacent-row-changes-105bc284 -d '<json body>'
```

Example prompt: Can you run a daily sum series and adjacent row changes report on my knowledge base maintenance data? Here are the rows — each has a date, a document group, updated_articles, and due_articles counts — and I want to analyze the updated_articles field.

## When to prefer this

Choose this endpoint when you have up to 200 rows of knowledge base maintenance data and need both a daily aggregated time series and adjacent-row delta analysis in a single low-cost call ($0.01 USDC). It is ideal for offline or batch analytical workflows where no live data lookup, prediction, or external action is required — just fast, local computation on your supplied records.

## Known failure modes

- Missing required fields (row_id, document_group, date, updated_articles, due_articles) cause validation failure
- Date strings not matching YYYY-MM-DD pattern are rejected
- Submitting more than 200 rows exceeds the row limit and is rejected
- Null values in the selected metric field may produce null deltas in the adjacent row changes report
- Empty rows array returns an error

## How this service works

Knowledge base maintenance — Daily sum series + Adjacent row changes: Daily sum series + Adjacent row changes 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) a daily sum time series showing the total of the selected field (updated_articles or due_articles) aggregated by date, and (2) an adjacent row changes report showing the difference between consecutive rows for the selected field. Both reports are computed locally 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",
     "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-daily-sum-series-adjacent-row-changes-105bc284/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)