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Level-two headings — Empty value report
x402
Level-two headings — Empty value report is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-13).
Parses a webpage or HTML snippet to report which H2 heading elements have empty values for a specified attribute.
Price / call$0.01
Success—
StatusUnknown
How this service works
Level-two headings — Empty value report: Empty value report for Level-two headings. 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 empty value report result.
Output
A bounded report listing H2 heading elements found in the parsed HTML or fetched URL that have empty values for the specified attribute, along with relevant heading text and attribute metadata. Static parsing only — no JavaScript rendering or authentication.
Example use cases
SEO audit for missing heading IDs
“Scan https://myblog.com/article for all H2 headings and tell me which ones are missing or have an empty 'id' attribute — I need to fix them for SEO.”
Accessibility check on raw HTML
“Here's my HTML: <h2 data-section=''>Getting started</h2><h2 data-section='intro'>Overview</h2> — which H2 headings have an empty 'data-section' attribute?”
Content QA for documentation site
“Check https://docs.myproduct.com/guide for H2 headings where the 'data-kind' attribute is empty, especially any related to the term 'configuration'.”
Technical details
Endpoint
POSThttps://market.datapackvibe.com/x402/assistant-bx-web-h2-empty?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a fast, lightweight audit of H2-level heading elements specifically for empty attribute values on a static HTML page or URL. Prefer it over full-site crawlers when you only need heading-level attribute checks without JavaScript execution, login flows, or deep DOM traversal. Ideal for SEO audits, accessibility checks, or content QA pipelines that process one page at a time.
Side effects
- URL is unreachable or returns non-200 status — endpoint cannot fetch page
- URL requires JavaScript rendering — static parser returns incomplete results
- HTML input exceeds 100,000 character limit — request rejected
- Attribute name does not match pattern ^[a-zA-Z][a-zA-Z0-9:_-]{0,49}$ — validation error
- No H2 headings found on the page — empty result set returned
- URL and HTML both absent or malformed — ambiguous input error
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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