# Sampling Observations — Record Quality Audit + String Normalisation + Base-100 Series

> Sampling Observations — Record Quality Audit + String Normalisation + Base-100 Series is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-15).

Runs three local analytical reports on sampling observation records: a record quality audit, string normalisation, and a base-100 indexed series — all offline, no external lookups.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-ib26-analytics-15-201?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/sampling-observations-record-quality-audit-string-normalisation-base-baa37322
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_-5SAiW-5IBovAawI8NM1W

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 sampling-observations-record-quality-audit-string-normalisation-base-baa37322 -d '<json body>'
```

Example prompt: Can you run the three-report analytics bundle on my sampling observations — quality audit, string normalisation, and base-100 series anchored to row index 0 — for the sample_value field? Here are up to 200 rows with row_id, dataset_group, date, sample_value, and sample_weight.

## When to prefer this

Choose this endpoint when you need three bundled offline analytics reports — quality audit, string normalisation, and base-100 indexing — on up to 200 sampling observation rows in a single low-cost call. Prefer it over separate single-report endpoints when your data already contains sample_value and sample_weight fields and you want comprehensive data-quality and trend analysis without any external lookups or live data enrichment.

## Known failure modes

- More than 200 rows supplied — request rejected at maxItems limit
- Missing required fields (row_id, dataset_group, date, sample_value, sample_weight) on any row — validation error
- base_index out of range (≥ number of rows supplied) — index error
- date field not matching YYYY-MM-DD pattern — schema validation failure
- Numeric fields outside ±1,000,000,000,000 range — schema rejection

## How this service works

Sampling observations — Record quality audit + String normalisation + Base-100 series: Record quality audit + String normalisation + Base-100 series for supplied sampling observations records (sample_value, sample_weight). Up to 200 rows; 3 independent reports using shared local analytical engines. No live lookup, prediction, professional assessment or external action. 0.01 USDC includes 3 supplied-data reports for up to 200 rows.

## Output

Three independent reports: (1) a record quality audit flagging completeness, nulls, and structural issues; (2) a string normalisation report standardising text fields like dataset_group; (3) a base-100 indexed series for the chosen numeric field (sample_value or sample_weight) relative to the specified base row index. All computed locally from the supplied rows, no external data.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "rows": {
   "type": "array",
   "items": {
    "type": "object",
    "required": [
     "row_id",
     "dataset_group",
     "date",
     "sample_value",
     "sample_weight"
    ],
    "properties": {
     "date": {
      "type": "string",
      "default": "",
      "pattern": "^\\d{4}-\\d{2}-\\d{2}$",
      "maxLength": 10
     },
     "row_id": {
      "type": "string",
      "default": "",
      "maxLength": 80,
      "minLength": 1
     },
     "sample_value": {
      "type": [
       "number",
       "null"
      ],
      "maximum": 1000000000000,
      "minimum": -1000000000000
     },
     "dataset_group": {
      "type": "string",
      "default": "",
      "maxLength": 80
     },
     "sample_weight": {
      "type": [
       "number",
       "null"
      ],
      "maximum": 1000000000000,
      "minimum": -1000000000000
     }
    },
    "additionalProperties": false
   },
   "default": [
    {
     "date": "2026-10-01",
     "row_id": "row-1",
     "sample_value": 10,
     "dataset_group": "group-a",
     "sample_weight": 1
    },
    {
     "date": "2026-10-02",
     "row_id": "row-2",
     "sample_value": 20,
     "dataset_group": "group-b",
     "sample_weight": 2
    },
    {
     "date": "2026-10-03",
     "row_id": "row-3",
     "sample_value": 15,
     "dataset_group": "group-a",
     "sample_weight": 3
    },
    {
     "date": "2026-10-04",
     "row_id": "row-4",
     "sample_value": 30,
     "dataset_group": "group-b",
     "sample_weight": 4
    }
   ],
   "maxItems": 200,
   "minItems": 1
  },
  "field": {
   "enum": [
    "sample_value",
    "sample_weight"
   ],
   "type": "string",
   "default": "sample_value"
  },
  "base_index": {
   "type": "integer",
   "default": 0,
   "maximum": 199,
   "minimum": 0
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/sampling-observations-record-quality-audit-string-normalisation-base-baa37322/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)