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Level-One Headings Structured Extraction
x402
Level-One Headings Structured Extraction is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-21).
Extracts H1 heading elements and their attributes from a public webpage or supplied HTML using static parsing.
Price / call$0.01
Success—
StatusUnknown
How this service works
Level-one headings — Structured extraction: Structured extraction for Level-one 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 structured extraction result.
Output
Returns a bounded structured extraction result containing the H1 heading elements found in the page or HTML, including their text content and specified attribute values, filtered by the provided term and attribute criteria.
Example use cases
SEO heading audit for a page
“Go to https://myblog.com/latest-post and extract every H1 heading — I want to see the text and the id attribute of each one to check if our SEO titles are set correctly.”
Content QA from raw HTML
“I have this HTML snippet — can you pull out all the H1 headings from it and show me just the ones that contain the word 'guide', along with their class attributes?”
Heading deduplication check
“Fetch https://shop.example.com/catalog and extract the H1 headings — I need to know if any of them repeat text we've already used; here's our list of previous headings to compare against: ['Catalog overview', 'Product listings'].”
Technical details
Endpoint
POSThttps://market.datapackvibe.com/x402/assistant-bx-web-h1-items?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need fast, static extraction of H1 heading elements from a public webpage or raw HTML snippet, especially when you want to filter by specific attributes or terms. It is ideal for SEO audits, content QA, and heading structure analysis where JavaScript rendering is not required. Prefer this over general-purpose scrapers when you need a lightweight, cost-effective ($0.01 USDC) single-operation extraction scoped specifically to H1 elements.
Side effects
- URL is not publicly accessible or returns a non-200 status — extraction fails with an error
- HTML content exceeds 100,000 character limit — request rejected
- JavaScript-rendered content not available — only static HTML is parsed, dynamic headings may be missing
- No H1 elements found matching the term or attribute filter — empty result returned
- Invalid attribute name pattern — request validation 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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