# Vendor Evaluation IQR Outlier Flags + Two-Measure Correlation

> Vendor Evaluation IQR Outlier Flags + Two-Measure Correlation 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 IQR-based outlier detection and two-measure correlation analysis on vendor evaluation records containing supplied_score and maximum_score fields, returning two independent statistical reports for up to 200 rows.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-ib26-company-10-176?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/vendor-evaluation-iqr-outlier-flags-two-measure-correlation-16e30c11
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_W0O0N6Q6XCnqAIz-KKi-Z

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 vendor-evaluation-iqr-outlier-flags-two-measure-correlation-16e30c11 -d '<json body>'
```

Example prompt: Can you analyze these vendor evaluation records for outliers and correlation — I have up to 50 rows with supplied_score and maximum_score for vendors across group-a and group-b from October 2026, and I want both IQR outlier flags and a two-measure correlation report in one go?

## When to prefer this

Choose this endpoint when you need both IQR-based outlier detection and correlation analysis on vendor evaluation data in a single, cost-effective call. It is ideal for procurement or vendor management workflows where you have batch records (up to 200) with supplied_score and maximum_score fields and want two distinct statistical perspectives without external lookups or predictions. Prefer it over general-purpose statistics APIs when you specifically have vendor evaluation data in the required schema and want a flat $0.01 USDC fixed price for both reports.

## Known failure modes

- Input array exceeds 200 rows — request rejected
- Missing required fields (row_id, supplied_score, maximum_score) — validation error
- All numeric values are null — unable to compute IQR or correlation
- Fewer than 2 valid rows — correlation computation not possible
- Invalid date format (must match YYYY-MM-DD) — schema validation failure

## How this service works

Vendor evaluation — IQR outlier flags + Two-measure correlation: IQR outlier flags + Two-measure correlation for supplied vendor evaluation records (supplied_score, maximum_score). 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 statistical reports: (1) IQR outlier flags identifying which rows fall outside the interquartile range for the selected field, and (2) a two-measure correlation analysis between supplied_score and maximum_score across all submitted vendor evaluation rows. No external data is fetched; all computation is local and based solely on the supplied rows.

## Request schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/vendor-evaluation-iqr-outlier-flags-two-measure-correlation-16e30c11/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)