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AgentShelf Meta Viewport Extractor
x402
AgentShelf Meta Viewport Extractor is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.008/call, status unknown (last checked 2026-10-11).
Extracts the meta viewport tag from a public web page URL or raw HTML in an SSRF-safe manner
Price / call$0.008
Success—
StatusUnknown
How this service works
Call when an agent needs the meta viewport extracted from a public page or HTML (SSRF-safe). Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/profile-meta-viewport first.
Output
Returns the extracted meta viewport tag value from the provided URL or raw HTML, indicating the viewport settings such as width, initial-scale, and other mobile rendering parameters defined on the page.
Example use cases
Audit mobile readiness of a site
“Check https://store.mybrand.com and tell me what meta viewport tag they have set — I want to know if they've configured it for mobile devices.”
Parse viewport from raw HTML snippet
“I have this HTML from a page I scraped and I need you to pull out the meta viewport tag from it so I can check the responsive settings.”
Verify viewport across competitor pages
“Can you fetch the meta viewport tag from https://competitor.io so I can compare their mobile configuration to ours?”
Technical details
Endpoint
POSThttps://agentshelf.syntexa.ch/v1/profile-meta-viewport?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to reliably extract meta viewport metadata from a public URL or raw HTML in a secure, SSRF-safe environment. It is preferred when you want a paid, production-grade extraction with guaranteed SSRF protection. Try the free sandbox endpoint POST /v1/sandbox/profile-meta-viewport first if cost is a concern.
Side effects
- URL is inaccessible or returns non-200 status — extraction fails with an error
- Page contains no meta viewport tag — returns empty or null result
- URL is blocked due to SSRF safety rules — request rejected
- HTML input exceeds 200,000 character limit — request rejected
- URL exceeds 2,048 character limit — request rejected
- Malformed HTML prevents parsing — may return partial or no result
- Payment of $0.008 USDC not provided — 402 Payment Required response
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
Reviews
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Zero review prompt (fires after every successful call)
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