# KiHustle Readability Fog Index Calculator

> KiHustle Readability Fog Index Calculator 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 the Gunning Fog Index readability score for a given text, indicating how many years of education are needed to understand it.

## Facts

- Endpoint: POST https://kihustle.tech/api/v1/readability-fog-index
- 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-readability-fog-index-calculator-186bfd63
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_m0-oumIqubhIEn4PfBx9X

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-readability-fog-index-calculator-186bfd63 -d '<json body>'
```

Example prompt: Can you check the Gunning Fog Index readability score for this paragraph: 'Artificial intelligence is revolutionizing the way businesses operate, enabling unprecedented automation of complex cognitive tasks previously reserved for human experts.'?

## When to prefer this

Use this endpoint when you need a quick, inexpensive automated readability assessment via the Gunning Fog Index metric specifically — ideal for content workflows, writing assistance tools, or educational apps that need to flag overly complex text. Prefer this over general NLP APIs when you specifically need the Fog Index rather than other readability metrics like Flesch-Kincaid or SMOG.

## Known failure modes

- Empty or missing 'text' field returns an error or unexpected result
- Extremely short text (fewer than 2 sentences) may produce unreliable fog index scores
- Non-English text may yield inaccurate readability scores since the Fog Index is calibrated for English
- Very large text bodies may time out or be rejected
- Malformed JSON input returns a 4xx 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 Gunning Fog Index score and a 'status' field indicating success or failure of the computation.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "text": {
   "type": "string"
  }
 }
}
```

## 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-readability-fog-index-calculator-186bfd63/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)