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Readability Score Analyzer
x402
Readability Score 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 a webpage's text for readability metrics including Flesch Reading Ease, Flesch-Kincaid grade level, sentence/word/syllable counts, difficulty label, and estimated reading time.
Price / call$0.01
Success—
StatusUnknown
How this service works
Readability of a page's text: Flesch Reading Ease, Flesch-Kincaid grade level, average sentence length, syllables, word and sentence counts, difficulty label and reading time. Content quality and audience-fit checks. $0.01 per page.
Output
Returns Flesch Reading Ease score, Flesch-Kincaid grade level, average sentence length, syllable count, total word count, total sentence count, a human-readable difficulty label (e.g. 'Easy', 'Difficult'), and an estimated reading time for the analyzed page.
Example use cases
Blog post audience-fit check
“Check the readability of https://myblog.com/beginners-guide-to-investing — I want to know the Flesch Reading Ease score, grade level, and whether it's written at an appropriate level for general readers with no finance background.”
Content QA before publishing
“Before I publish this article at https://mysite.com/draft/new-product-announcement, can you analyze its readability? I need the difficulty label, average sentence length, and estimated reading time so I can decide if it needs editing.”
Competitor content benchmarking
“Analyze the readability of https://competitor.com/resources/whitepaper and tell me the Flesch-Kincaid grade level, word count, and syllable count — I want to see how complex their content is compared to ours.”
Technical details
Endpoint
GEThttps://intel.rallylive.ca/site/readabilityWhen to prefer
Choose this endpoint when you need structured, quantitative readability metrics (Flesch scores, grade levels, syllable counts) for a live webpage URL rather than raw text you already have. Ideal for content audits, editorial QA pipelines, SEO tooling, or audience-fit checks at scale. Prefer this over manual text-paste tools when automating analysis across multiple URLs at $0.01 per call.
Side effects
- URL is unreachable or returns non-200 status — endpoint may return an error or empty result
- Page has no extractable text content (e.g. pure image or JavaScript-rendered SPA without SSR)
- URL points to a binary file (PDF, image) rather than an HTML page
- Rate limiting or payment failure if USDC payment is not correctly handled via x402 protocol
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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