Text Readability Score API

Text Analysis Freemium View on RapidAPI ↗

Analyze text readability and complexity with multiple scoring algorithms: Flesch-Kincaid Grade Level, Flesch Reading Ease, Gunning Fog, SMOG, Coleman-Liau, and Automated Readability Index (ARI). Returns reading grade level, audience suitability, and sentence/word-level metrics. Ideal for content editors, SEO tools, LMS platforms, and writing assistants.

2 subscribers
The in-depth APIMemo review for this API hasn't been published yet — the data below comes straight from the public marketplace listing.

Text Readability Score API pricing

PlanPriceRate limitQuotas
BASIC Free —
  • Requests: 1,000 / monthly
PRO $3.99 / month —
  • Requests: 10,000 / monthly
ULTRA Recommended $13.99 / month —
  • Requests: 100,000 / monthly
MEGA $44.99 / month —
  • Requests: 500,000 / monthly

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