# 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 2026-10-22).

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

## Facts

- Endpoint: POST https://kihustle.tech/bot-bazaar/api/v1/json-rolling-std-dev?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-22
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/kihustle-rolling-standard-deviation-api-6e557387
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_bM6jwkVfv2HeLR4EpMyNs

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-6e557387 -d '<json body>'
```

Example prompt: Calculate the rolling standard deviation of these numbers [12.5, 13.1, 11.8, 14.2, 13.7, 12.9, 15.0] using a window size of 3.

## When to prefer this

Choose this endpoint when you need a quick, pay-per-use rolling standard deviation calculation without setting up your own statistical library or compute environment. Useful for lightweight agents that occasionally need windowed dispersion metrics on numeric sequences, especially in financial, IoT, or analytics contexts.

## Known failure modes

- Missing or empty 'values' array returns an error
- Window size larger than the input array length may return an error or empty result
- Non-numeric values in the array will cause a validation failure
- Negative or zero window size is likely invalid
- Network or payment authorization failures return HTTP 402

## 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 output and a 'status' field indicating success. The rolling std dev values correspond to each valid window position in 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-6e557387/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)