# Data Catalog Coverage — Duplicate Key Report + Trailing Mean Series

> Data Catalog Coverage — Duplicate Key Report + Trailing Mean Series 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).

Runs two local analytical reports on supplied data catalog coverage rows: a duplicate key report and a trailing mean series, for up to 200 rows of documented_fields or total_fields data.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-ib26-analytics-21-061?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/data-catalog-coverage-duplicate-key-report-trailing-mean-series-6dfd11e9
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_hnPOX6AStLN7XT8u9PAeE

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 data-catalog-coverage-duplicate-key-report-trailing-mean-series-6dfd11e9 -d '<json body>'
```

Example prompt: Run a duplicate key report and trailing mean series on my data catalog coverage records — here are 4 rows with row_id, dataset_group, date, documented_fields, and total_fields — use documented_fields as the target field and a window size of 2.

## When to prefer this

Choose this endpoint when you have up to 200 data catalog coverage records and need both duplicate key detection and trailing moving average computation in a single call, without requiring any external data sources, live lookups, or predictions. It is ideal for data governance workflows where you want to validate catalog record uniqueness and measure documentation completeness trends simultaneously at low cost.

## Known failure modes

- Fewer than 1 row or more than 200 rows submitted — request rejected
- Invalid date format (not YYYY-MM-DD) causes row validation failure
- Missing required fields (row_id, dataset_group, date, documented_fields, total_fields) causes schema rejection
- Window size outside range 2–200 returns error
- Field selector not one of 'documented_fields' or 'total_fields' causes enum validation failure
- Null numeric values may affect trailing mean computation if predominant

## How this service works

Data catalog coverage — Duplicate key report + Trailing mean series: Duplicate key report + Trailing mean series for supplied data catalog coverage records (documented_fields, total_fields). 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 independent analytical reports: (1) a duplicate key report identifying rows with repeated key combinations across the supplied catalog coverage records, and (2) a trailing mean series showing rolling averages of the selected field (documented_fields or total_fields) over the specified window size. Both reports are computed locally with no external data lookups.

## Request schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/data-catalog-coverage-duplicate-key-report-trailing-mean-series-6dfd11e9/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)