# JSON Outlier Detector (IQR Method)

> JSON Outlier Detector (IQR Method) is a paid API for AI agents from kihustle.tech, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-14).

Detects statistical outliers in a numeric array using the interquartile range (IQR) method

## Facts

- Endpoint: POST https://kihustle.tech/agents/api/v1/json-outlier-detector-iqr
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/json-outlier-detector-iqr-method-a03e3a69
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_iyhYvJEFN__yscSHyiGJq

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 json-outlier-detector-iqr-method-a03e3a69 -d '<json body>'
```

Example prompt: Can you check this list of numbers for outliers using the IQR method? The values are [12, 14, 13, 15, 100, 11, 13, 200, 12, 14].

## When to prefer this

Choose this endpoint when you need a quick, stateless, pay-per-call outlier detection service using the well-established IQR (box plot) method on a flat numeric array. It is ideal for lightweight data cleaning pipelines, pre-processing steps before analytics, or ad-hoc anomaly checks where you do not need a full ML-based anomaly detection system. Prefer this over heavier statistical libraries when operating in an agent workflow that needs a simple, fast API call rather than embedded computation.

## Known failure modes

- Empty or null values array returns an error or undefined behavior
- Non-numeric elements in the array may cause processing failure
- Array with fewer than 4 values may yield unreliable IQR calculation
- Malformed JSON input returns a 400-level error
- Service unavailability returns a 402 or 5xx response if payment or server issues occur

## How this service works

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## Output

Returns a JSON object indicating whether the request was processed successfully, along with outlier detection results identifying which values in the input array fall outside the IQR-defined bounds (typically Q1 - 1.5×IQR and Q3 + 1.5×IQR).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "values": {
   "type": "array",
   "items": {
    "type": "number"
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "result": "processed",
  "status": "success"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/json-outlier-detector-iqr-method-a03e3a69/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from kihustle.tech](https://www.zero.xyz/host/kihustle.tech/llms.txt)