# KiHustle Rolling Standard Deviation API

> KiHustle Rolling Standard Deviation API is a paid API for AI agents from kihustle.tech, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-13).

Computes a rolling (windowed) standard deviation over an array of numeric values

## Facts

- Endpoint: POST https://kihustle.tech/api/v1/json-rolling-std-dev
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/kihustle-rolling-standard-deviation-api-98023435
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_k0AXbX3HTAvABfmgqALAn

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 kihustle-rolling-standard-deviation-api-98023435 -d '<json body>'
```

Example prompt: Calculate the rolling standard deviation for this price series [100, 102, 98, 105, 110, 107, 103, 99, 112, 108] using a window size of 3.

## When to prefer this

Choose this endpoint when you need a lightweight, pay-per-call statistical computation for rolling standard deviation without setting up your own data pipeline. Useful for financial volatility calculations, anomaly detection in sensor streams, or any scenario requiring windowed dispersion metrics on numeric arrays without a full analytics platform.

## Known failure modes

- Invalid or missing 'values' array — endpoint may return an error or empty result
- Window size larger than the input array length — may produce no output or an error
- Non-numeric values in the array — likely causes a processing error
- Negative or zero window size — invalid parameter likely causes failure
- Empty values array — may return empty result or error

## How this service works

Kostenlose Guides, Solo-Playbooks und Artikel zu KI, Automation und Side Hustles — für Menschen, die mit echten Systemen online Einkommen aufbauen wollen. Transparent finanziert über faire Affiliate-Links.

## Output

Returns a JSON object with a 'result' field containing the computed rolling standard deviation values and a 'status' field indicating success. The output represents the standard deviation computed over each sliding window of the specified size across the input array.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/kihustle-rolling-standard-deviation-api-98023435/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)