# Research Samples — Duplicate Key Report + Daily Sum Series

> Research Samples — Duplicate Key Report + Daily Sum 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).

Generates two local analytical reports — a duplicate key report and a daily sum series — for up to 200 rows of research sample data (sample_value or sample_weight).

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-ib26-education-07-060?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/research-samples-duplicate-key-report-daily-sum-series-66ddb711
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_0PTSRf3qKeyv8b8aumzOf

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 research-samples-duplicate-key-report-daily-sum-series-66ddb711 -d '<json body>'
```

Example prompt: Check my research sample rows for duplicate row IDs and also give me a daily sum of sample_value — here are up to 200 rows each with a row_id, course_group, date, sample_value, and sample_weight.

## When to prefer this

Choose this endpoint when you need two lightweight, local analytical operations — duplicate detection and daily aggregation — on a small research dataset (up to 200 rows) in a single low-cost call ($0.01 USDC). Ideal for pre-analysis data quality checks on tabular education or research sample data with dates and course group dimensions, when no external data, predictions, or live lookups are needed.

## Known failure modes

- Input array exceeds 200 rows — request will be rejected
- Missing required fields (row_id, date, course_group) on any row causes validation error
- Invalid date format (not YYYY-MM-DD) causes schema rejection
- sample_value or sample_weight outside allowed numeric range returns error
- Empty rows array rejected (minItems: 1)

## How this service works

Research samples — Duplicate key report + Daily sum series: Duplicate key report + Daily sum series for supplied research samples 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

Two independent analytical reports: (1) a duplicate key report identifying rows with repeated row_id values, and (2) a daily sum series showing the total of the selected field (sample_value or sample_weight) aggregated by date — all computed locally without external lookups, for up to 200 input rows.

## Request schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/research-samples-duplicate-key-report-daily-sum-series-66ddb711/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)