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Publishing Calc – Silent Reading Time
x402
Publishing Calc – Silent Reading Time is a paid API for AI agents from publishing-calc.x402tookit.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-29).
Calculates the silent reading time for a given word count at a specified words-per-minute rate, returning results as minutes and as hours:minutes:seconds.
Price / call$0.02
Success—
StatusUnknown
How this service works
Silent reading time for a word count at your words-per-minute (default 238), as minutes and hours:minutes:seconds.
Output
Returns the word count used, words-per-minute rate applied, total reading time as a decimal minutes value, minutes rounded up to the nearest whole minute, and a formatted clock time string (H:MM:SS). Also includes a human-readable summary and optional disclaimer or degraded-service flags.
Example use cases
Blog post reading time estimate
“I've written a blog post that's 1,800 words — how long will it take the average reader to get through it silently? Just use the default reading speed.”
Book chapter read-time for editor
“My chapter is 12,400 words and my editor reads at about 300 words per minute. How long will it take her to read it in hours and minutes?”
Newsletter length check
“I want to keep my newsletter under a 5-minute read. It's currently 1,050 words at a default reading speed — does it fit, and exactly how long is it?”
Technical details
Endpoint
GEThttps://publishing-calc.x402tookit.com/reading-time?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a fast, deterministic calculation of silent reading time from a word count, especially in publishing, content, or editorial workflows. It is purpose-built for books, articles, newsletters, and manuscripts — with a default WPM calibrated to adult non-fiction silent reading (238 WPM). Prefer it over general-purpose LLM estimates when you need consistent, reproducible reading-time figures.
Side effects
- Missing required 'words' query parameter returns an error
- Non-numeric or negative word count may produce invalid results
- Extremely low or zero WPM values may cause division errors
- Network or payment (x402) failure prevents any response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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