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AgentShelf og:url Extractor
x402
AgentShelf og:url Extractor is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.006/call, status unknown (last checked 2026-10-02).
Extracts the og:url Open Graph meta tag from a public webpage URL or raw HTML, with SSRF protection.
Price / call$0.006
Success—
StatusUnknown
How this service works
Call when an agent needs og:url extracted from a public page or HTML (SSRF-safe). Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/profile-og-url first.
Output
Returns the value of the og:url Open Graph property found in the page's HTML meta tags — typically a canonical absolute URL string. If no og:url tag is present, returns null or an empty result.
Example use cases
Canonical URL verification for SEO audit
“I have this article URL — https://techblog.example.com/post/123 — can you grab the og:url from its Open Graph tags so I can check whether it matches the actual URL?”
Link preview card generator
“I'm building a link preview and I already have the raw HTML for a page. Can you extract the og:url value from this HTML so I can set the canonical link in the card?”
Duplicate content detection pipeline
“For this list of URLs, starting with https://news.example.com/story?ref=twitter, pull out the og:url so I can compare it against the requested URL and flag any mismatches.”
Technical details
Endpoint
POSThttps://agentshelf.syntexa.ch/v1/profile-og-url?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need only the og:url Open Graph property from a page and want a lightweight, cost-effective extraction ($0.006 USDC) without running a full scraper or LLM. It is SSRF-safe, so it is appropriate for agent pipelines that fetch arbitrary user-supplied URLs. Prefer the free sandbox endpoint (/v1/sandbox/profile-og-url) for testing. Use this paid endpoint for production workloads where reliability matters.
Side effects
- URL is unreachable or returns non-200 status — fetch fails with an error
- SSRF-blocked URL (private IP range, localhost) — rejected for security reasons
- No og:url meta tag present in the page HTML — returns empty or null result
- HTML input exceeds 200,000 character limit — request rejected
- Malformed or non-HTML content at URL — parser may return no result
- Neither url nor html provided — validation error
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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