# Transport Ridership Record Quality Audit + IQR Outlier Flags

> Transport Ridership Record Quality Audit + IQR Outlier Flags is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-25).

Audits data quality and flags IQR-based outliers in transport ridership records (passenger_count or service_count) for up to 200 rows, returning two independent analytical reports.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-ib26-economics-05-014?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-25
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/transport-ridership-record-quality-audit-iqr-outlier-flags-ae943b8b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Nik3AnmVs8W93TD-JIiYI

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 transport-ridership-record-quality-audit-iqr-outlier-flags-ae943b8b -d '<json body>'
```

Example prompt: Can you run a record quality audit and flag any IQR outliers on my transport ridership data for the passenger_count field? I have about 50 rows with region, date, passenger_count, and service_count columns.

## When to prefer this

Choose this endpoint when you need a quick, low-cost ($0.01 USDC) dual-report audit of transport ridership tabular data — specifically record quality checks combined with IQR outlier detection — without requiring live lookups, predictions, or external data enrichment. Ideal for pre-processing pipelines where you want to catch bad rows before downstream analytics.

## Known failure modes

- Exceeding 200 rows returns a validation error
- Missing required fields (row_id, region, date, passenger_count, service_count) cause rejection
- Invalid date format (non-YYYY-MM-DD) triggers schema validation failure
- All-null values for the selected field may produce degenerate IQR results
- Submitting fewer than 1 row returns an error

## How this service works

Transport ridership — Record quality audit + IQR outlier flags: Record quality audit + IQR outlier flags for supplied transport ridership records (passenger_count, service_count). 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 reports: (1) a record quality audit identifying data issues such as nulls, format errors, or invalid values across the supplied rows, and (2) IQR-based outlier flags indicating which rows have statistically extreme passenger_count or service_count values relative to the dataset's interquartile range.

## Request schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/transport-ridership-record-quality-audit-iqr-outlier-flags-ae943b8b/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)