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Web Intel API – Text Analysis
x402
Web Intel API – Text Analysis is a paid API for AI agents from web-intel-x402.x402-web-intel-api.workers.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-02).
Analyzes a block of text to extract top keywords with frequencies, detect language, and compute a readability score.
Price / call$0.001
Success—
StatusUnknown
How this service works
Pay-per-call web extraction, on-page SEO audits and text analytics for AI agents. Paid in USDC on Base via x402 — no accounts or API keys.
Output
Returns a JSON object containing: an array of top keywords each with their term string and occurrence count, a detected language code (e.g. 'es', 'en'), and a readability object with a numeric score (e.g. Flesch-Kincaid style 0-100).
Example use cases
SEO keyword audit for blog post
“I just wrote this 1200-word blog post — can you pull out the top 15 keywords with how often they each appear, plus tell me how readable it is so I can optimize it before publishing?”
Language detection for user-submitted content
“A user submitted this review on our platform and I'm not sure what language it's in — can you run text analysis on it and tell me the detected language and its readability score?”
Content quality check before publishing
“Before I publish this press release, can you analyze the text and give me the top 10 most frequent terms and a readability score so I know if it's accessible to a general audience?”
Technical details
Endpoint
POSThttps://web-intel-x402.x402-web-intel-api.workers.dev/v1/text-analysis?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need lightweight, pay-per-call text analytics — keyword extraction, language detection, and readability scoring — without setting up accounts or API keys. Ideal for AI agents that process arbitrary user-supplied text on demand and need structured NLP signals cheaply (fractions of a cent per call). Prefer this over heavier NLP APIs when you only need keyword frequency, language ID, and readability rather than deep semantic embeddings or entity recognition.
Side effects
- Text exceeds 200,000 character limit — request rejected
- topN integer not provided defaults to a system-defined count — may return more or fewer terms than expected
- Payment not fulfilled via x402 — 402 Payment Required returned before processing
- Empty or whitespace-only text body — may return empty keywords array
- Ambiguous or mixed-language text — language detection may be inaccurate
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| text | string | |
| topN | integer |
Output
Schema · Response
{
"type": "json",
"example": {
"keywords": [
{
"term": "api",
"count": 3
}
],
"language": "es",
"readability": {
"score": 64.2
}
}
}Tags
x402
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