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NexusAPI Text Readability Analyzer
x402
NexusAPI Text Readability Analyzer is a paid API for AI agents from nexus-api-virid.vercel.app, paid per call via x402, $0.067179/call, status unknown (last checked 2026-09-15).
Analyzes a piece of text and returns readability metrics and scores to assess how easy it is to read and understand.
Price / call$0.067179
Success—
StatusUnknown
How this service works
Crypto, AI, Social Media, Finance, Weather, Tools & more. Pay per call in USDC on Base. No API keys.
Output
Returns readability metrics for the submitted text, likely including scores such as Flesch Reading Ease, Flesch-Kincaid Grade Level, and other complexity indicators like average sentence length, syllable count, and reading difficulty classification.
Example use cases
Blog post readability check
“Analyze the readability of this blog intro and tell me if it's suitable for a general adult audience: 'Blockchain technology underpins a decentralized paradigm of trustless transactional immutability across distributed ledger nodes.'”
Student essay grade-level check
“What reading grade level is this student essay written at? Here's the text: 'The French Revolution was a period of radical political and societal transformation in France that began with the Estates General of 1789.'”
Marketing copy simplicity audit
“Score the readability of this product description for me — I want to make sure it's simple enough for everyday shoppers: 'Our proprietary nano-infused serum leverages bio-enzymatic peptide synthesis to facilitate dermal rejuvenation.'”
Technical details
Endpoint
POSThttps://nexus-api-virid.vercel.app/api/tools/text/readabilityWhen to prefer
Choose this endpoint when you need a quick, pay-per-call readability score without setting up API keys or managing subscriptions. Ideal for AI agents that need to programmatically assess text complexity as part of a content pipeline, editorial workflow, or educational tool, especially when the calling infrastructure supports x402 USDC micropayments on Base.
Side effects
- Empty or missing text input returns an error
- Very short text (e.g. single word) may produce unreliable scores
- Non-English text may return inaccurate or unsupported results
- Payment failure in USDC results in HTTP 402 and no analysis
- Request timeout for extremely long documents
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| query | string | Search query or input parameter |
Output
Schema · Response
{
"type": "object",
"description": "API response data"
}Tags
x402
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