# Sampling Observations — Exact Row Deduplication + Duplicate Key Report

> Sampling Observations — Exact Row Deduplication + Duplicate Key Report 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).

Deduplicates sampling observation records by exact row match and generates a duplicate key report, processing up to 200 rows with two analytical reports per call.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-ib26-analytics-15-038?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-exact-row-deduplication-duplicate-key-report-9364d6f2
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_AGYGmU6zuzGznIuyaZMB0

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-exact-row-deduplication-duplicate-key-report-9364d6f2 -d '<json body>'
```

Example prompt: Can you deduplicate my sampling observations and give me a duplicate key report? Here are my rows — each has a row_id, dataset_group, date, sample_value, and sample_weight — and I need both the exact row deduplication result and the duplicate key report.

## When to prefer this

Choose this endpoint when you need both exact row deduplication and a duplicate key report for sampling observation data (with sample_value and sample_weight fields) in a single call for up to 200 rows. It is ideal for lightweight, self-contained data quality checks on survey or sampling datasets without requiring external data sources, live lookups, or prediction services. Prefer it over general-purpose analytics tools when you specifically need these two pre-packaged deduplication reports at low cost.

## Known failure modes

- More than 200 rows submitted — request exceeds maxItems limit and will be rejected
- Missing required fields (row_id, dataset_group, date, sample_value, sample_weight) cause validation errors
- Invalid date format (not YYYY-MM-DD) triggers pattern validation failure
- Values outside allowed numeric range (±1,000,000,000,000) cause schema rejection
- Empty rows array (minItems:1 not met) results in error
- Payment not included or insufficient USDC causes x402 payment failure

## How this service works

Sampling observations — Exact row deduplication + Duplicate key report: Exact row deduplication + Duplicate key report for supplied sampling observations records (sample_value, sample_weight). 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 supplied sampling observations, and (2) a duplicate key report flagging records that share duplicate key values across the dataset. Both reports are computed locally from the submitted data with no external lookups.

## 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
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/sampling-observations-exact-row-deduplication-duplicate-key-report-9364d6f2/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)