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Marked Text Adjacent Word-Pair Frequency Analyzer
x402
Marked Text Adjacent Word-Pair Frequency Analyzer is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-15).
Extracts bigram (adjacent word-pair) frequency counts from text within HTML <mark> elements identified by a given attribute and value on a webpage or supplied HTML.
Price / call$0.01
Success—
StatusUnknown
How this service works
Marked text — Adjacent word-pair frequency: Adjacent word-pair frequency for Marked text. One public HTTPS page or supplied HTML; static parsing, no JavaScript rendering, login or access bypass. Specialised preset in a shared 50-profile, 20-operation engine. 0.01 USDC includes one bounded adjacent word-pair frequency result.
Output
Returns a bounded set of adjacent word-pair (bigram) frequency counts extracted from the text within the targeted <mark> HTML element on the specified page or HTML document, parsed statically without JavaScript rendering.
Example use cases
SEO keyword co-occurrence audit
“I want to see which word pairs appear most often in the highlighted summary section of https://myblog.com/article — the <mark> element with id='summary' — so I can understand how keywords cluster around the term 'content'.”
Content consistency check across versions
“Check the marked section (attribute 'data-kind', value 'example') in this HTML snippet for adjacent word-pair frequencies around the term 'feature', so I can compare it against older drafts I'll provide.”
Terminology analysis in product documentation
“Analyze how frequently adjacent word pairs appear in the marked guide section of https://docs.myproduct.com/overview — the <mark> with id='guide' — focusing on the term 'configuration', so I can spot jargon patterns.”
Technical details
Endpoint
POSThttps://market.datapackvibe.com/x402/assistant-bx-web-marked-bigrams?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need bigram frequency analysis scoped precisely to a <mark> HTML element identified by a specific attribute/value, rather than full-page text analysis. Ideal for targeted content audits, terminology studies, and comparing highlighted sections across document versions using static HTML parsing without JavaScript.
Side effects
- URL is inaccessible, paywalled, or requires JavaScript rendering — static parser returns empty or error
- No <mark> element matches the specified attribute and value — result is empty
- HTML exceeds 100,000 character limit — input rejected
- Term parameter is missing or empty — validation error
- URL and HTML both absent or malformed — request rejected
- Page content changes between calls — results may differ on retry
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| url | string | |
| html | string | |
| term | string | |
| attribute | string | |
| previous_texts | array | |
| attribute_value | string |
Tags
x402
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