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Text Statistics & Readability
x402
Text Statistics & Readability is a paid API for AI agents from bess-x402.onrender.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-28).
Analyzes a text string and returns word count, sentence count, character count, reading/speaking time, readability scores (Flesch, Flesch-Kincaid, Gunning Fog), lexical diversity, and top keywords.
Price / call$0.002
Success—
StatusUnknown
How this service works
Statistics for a text: words, sentences, characters, paragraphs, reading and speaking time, Flesch reading ease, Flesch-Kincaid grade, Gunning fog, complex-word share, lexical diversity and top keywords. Use to check copy, essays or SEO content.
Output
Returns a JSON object with: total word count, sentence count, character count, paragraph count, estimated reading time (minutes), estimated speaking time (minutes), Flesch reading ease score, Flesch-Kincaid grade level, Gunning Fog index, percentage of complex words, lexical diversity ratio, and a ranked list of top keywords extracted from the text.
Example use cases
Blog post readability check
“Can you analyze the readability of this blog post draft and tell me the Flesch reading ease, Gunning Fog grade level, estimated reading time, and top keywords? Here's the text: 'Artificial intelligence is transforming how businesses operate. From automating repetitive tasks to generating nuanced insights, AI tools are now accessible to companies of every size...'”
Student essay grade level check
“I want to know if this essay reads at a high school level — run it through the Flesch-Kincaid and Gunning Fog scoring, and also give me the word count and lexical diversity: 'The French Revolution was a period of radical political and societal transformation in France that began with the Estates General of 1789...'”
Marketing copy speaking time estimate
“I'm preparing a 60-second ad script and need to know the speaking time, word count, and how readable it is — here's the copy: 'Tired of juggling a dozen apps just to manage your team? Streamline is the all-in-one workspace that brings your projects, chat, and files together in one place. Try it free today.'”
Technical details
Endpoint
GEThttps://bess-x402.onrender.com/v1/text/stats?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a comprehensive, multi-metric readability and text-statistics report in a single call — especially when you need standard academic readability formulas (Flesch, Flesch-Kincaid, Gunning Fog) alongside word/sentence counts and keyword extraction. Ideal for content editors, SEO workflows, student writing tools, and script timing checks. Prefer this over generic NLP APIs when readability grade-level scoring and speaking-time estimates are specifically required.
Side effects
- Missing 'text' query parameter returns a validation error
- Text exceeding 100,000 characters may be rejected or truncated
- Empty string input may return zeroed-out metrics or an error
- Very short inputs (1-2 words) may produce unreliable readability scores
- Non-English text may yield inaccurate readability scores since formulas are calibrated for English
- Network timeout on the Render.com host if the service is cold-starting
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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