Text Readability Scoring

Data Freemium View on RapidAPI ↗

Comprehensive text readability analysis API that calculates six industry-standard readability metrics in a single request. Get Flesch-Kincaid Grade Level, Flesch Reading Ease, Gunning Fog Index, Coleman-Liau Index, Automated Readability Index (ARI), and SMOG Index scores along with an average grade level. Perfect for content optimization, SEO writing tools, educational platforms, accessibility…

1 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 Scoring pricing

PlanPriceRate limitQuotas
BASIC Free 5 / minute
  • Requests: 500 / monthly
PRO $9.99 / month 30 / minute
  • Requests: 20,000 / monthly (then $0.0005 each)
ULTRA Recommended $49.99 / month 150 / minute
  • Requests: 200,000 / monthly (then $0.0003 each)
MEGA $199 / month 500 / minute
  • Requests: 2,000,000 / monthly (then $0.0001 each)

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