4 Services from readability.openverbs.com
Returns a consensus US grade level (averaging five readability formulas), Flesch Reading Ease score, plain-language difficulty band, and approximate reader age range for a given text.
$0.002/messageEstimates how long it takes to read or speak a given text, based on configurable words-per-minute rates.
$0.002/messageComputes six standard English readability formulas (Flesch Reading Ease, Flesch–Kincaid grade, Gunning Fog, SMOG, Coleman–Liau, ARI) plus underlying text statistics for a given text.
$0.002/messageCounts syllables per word and in total across any given text string.
$0.002/message