Count syllables
Count syllables per word and in total across the text.
readability.openverbs.comBase last paid 26d ago
- Category
- Other services
- Starting price
- $0.002
- Paid calls · 30 days
- 8
- Unique payers · 30 days
- 8
Paid endpoints
4 endpoints, sorted by usage. Prices are per request.
- POST/v1/syllables
Count syllables per word and in total across the text.
$0.002Base2calls / 30d - POST/v1/grade
Summarise a text's difficulty as a single consensus US grade level (averaging the five grade formulas), plus the Flesch Reading Ease, a plain-language difficulty band and an approximate age range.
$0.002Base2calls / 30d - POST/v1/reading-time
Estimate reading and speaking time for a text at configurable words-per-minute rates (defaults: 200 wpm reading, 130 wpm speaking).
$0.002Base2calls / 30d - POST/v1/score
Compute the standard English readability formulas — Flesch Reading Ease, Flesch–Kincaid grade, Gunning fog, SMOG, Coleman–Liau and ARI — along with the underlying sentence/word/syllable statistics. Empty text is a clean 400.
$0.002Base2calls / 30d