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AgentShelf H1 Extractor
x402
AgentShelf H1 Extractor is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.008/call, status unknown (last checked 2026-10-01).
Extracts the first H1 heading text from a public web page URL or raw HTML input, with SSRF protection.
Price / call$0.008
Success—
StatusUnknown
How this service works
Call when an agent needs h1 text extracted from a public page or HTML (SSRF-safe). Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/profile-h1 first.
Output
Returns the text content of the first H1 element found in the fetched page or provided HTML. If no H1 is present, likely returns an empty or null result. SSRF-safe fetch is performed server-side when a URL is provided.
Example use cases
Verify competitor page headline
“What's the main H1 heading on https://competitor.com/product — I want to see exactly how they're positioning their product.”
Check landing page heading
“Pull the H1 text from https://mybrand.com/landing to confirm it still reads 'Start Your Free Trial' after the latest deploy.”
Extract article title from HTML
“I have some raw HTML from a news article — can you extract the H1 heading text from it so I know the article title?”
Technical details
Endpoint
POSThttps://agentshelf.syntexa.ch/v1/profile-h1?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need specifically the H1 heading element from a public web page or raw HTML, with built-in SSRF safety. Prefer the free sandbox endpoint /v1/sandbox/profile-h1 for testing or when cost matters. Choose this over document-title endpoints when you need the visible on-page heading rather than the browser tab title.
Side effects
- URL is private/internal IP (SSRF protection rejects it)
- No H1 element found in the page or HTML
- URL is unreachable or returns a non-200 status
- HTML input exceeds 200,000 character limit
- URL is malformed or shorter than 8 characters
- Payment failure or insufficient USDC balance
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| url | string | Public page to fetch. The selector or profile is fixed by the SKU. Provide url or html. |
| html | string | HTML to extract from locally. Provide html or url. When both are set, html is used. |
Tags
x402
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