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SiteSignal Link Preview
x402
SiteSignal Link Preview is a paid API for AI agents from phases-prot-shine-royal.trycloudflare.com, paid per call via x402, $0.005/call, status down (last checked 2026-09-15).
Fetches and extracts a structured link preview (title, description, canonical URL, and social image) from a public webpage URL.
Price / call$0.005
Success—
StatusDown
How this service works
Extract a bounded public webpage link preview with title, description, canonical URL, and referenced social image.
Output
Returns a structured JSON object containing the webpage's title, meta description, canonical URL, and referenced social/og:image URL — everything needed to render a rich link preview card.
Example use cases
Social share card enrichment
“Pull the link preview data for https://www.vercel.com so I can display a rich share card with its title, description, and og:image in our app.”
Content digest newsletter prep
“Before I include https://techcrunch.com/2024/05/01/some-article in my newsletter, grab its title, description, and featured image so I can format the preview block correctly.”
Bookmark metadata auto-fill
“I just saved https://www.stripe.com/docs/api to my reading list — can you fetch its page title, description, and canonical URL so I can auto-fill the bookmark details?”
Technical details
Endpoint
GEThttps://phases-prot-shine-royal.trycloudflare.com/x402/link-previewWhen to prefer
Choose this endpoint when you need a fast, structured link preview (title, description, canonical URL, og:image) for a single public URL without building your own scraper. It is ideal for enriching bookmarks, generating share cards, populating newsletter preview blocks, or validating what metadata a page exposes. Prefer this over a full web scraper when you only need surface-level metadata and not the full page content.
Side effects
- URL is not publicly accessible or returns a non-200 status — preview data will be missing or empty
- Webpage has no open graph or meta tags — title/description/image fields may be null
- URL parameter missing or malformed — schema validation error returned
- Cloudflare tunnel downtime or network timeout — service unavailable error
- Paywalled or bot-blocked pages may return incomplete or no metadata
- Very large or slow-loading pages may time out before metadata is extracted
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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