# Text Readability Analyzer

> Text Readability Analyzer is a paid API for AI agents from intel.rallylive.ca, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).

Analyzes submitted text and returns Flesch Reading Ease score, Flesch-Kincaid grade level, average sentence length, syllable count, difficulty label, and estimated reading time.

## Facts

- Endpoint: GET https://intel.rallylive.ca/data/readability-text
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/text-readability-analyzer-0465031d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_K14ClPkehSpzJsvFyTWAA

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 text-readability-analyzer-0465031d
```

Example prompt: Check the readability of this paragraph for me — I want to know the Flesch Reading Ease score, grade level, difficulty label, and how long it would take to read: 'Leveraging synergistic paradigms to actualize transformative outcomes requires stakeholder alignment across multidisciplinary verticals.'

## When to prefer this

Choose this endpoint when you need fast, structured readability metrics on a piece of text before publishing or sharing it, especially when you want multiple readability dimensions (Flesch Reading Ease, Flesch-Kincaid grade, syllable count, reading time, and difficulty label) in a single call. Prefer it over manual calculation or full NLP pipelines when cost ($0.01/call) and simplicity matter more than deep linguistic analysis.

## Known failure modes

- Empty or missing text input returns an error or zero scores
- Extremely short text (single word) may produce unreliable scores
- Non-English text may yield inaccurate syllable counts and grade levels
- Payment failure via x402 returns 402 status before processing
- Very large text bodies may time out or be truncated

## How this service works

Readability of text you send: Flesch Reading Ease, Flesch-Kincaid grade, average sentence length, syllables, difficulty label and reading time. Check generated copy before publishing. $0.01 per call.

## Output

Returns a JSON object containing the Flesch Reading Ease score (0–100), Flesch-Kincaid grade level (numeric US school grade), average sentence length (words per sentence), total syllable count, a human-readable difficulty label (e.g. 'Very Easy', 'Difficult', 'Very Confusing'), and estimated reading time in seconds or minutes.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/text-readability-analyzer-0465031d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from intel.rallylive.ca](https://www.zero.xyz/host/intel.rallylive.ca/llms.txt)