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AgentPage402 Web Metadata Extractor
x402
AgentPage402 Web Metadata Extractor is a paid API for AI agents from agentpage402-demo.onrender.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-21).
Fetches and returns structured metadata (title, description, Open Graph, Twitter Card, canonical URL, language, robots) from a given public web page URL.
Price / call$0.01
Success—
StatusUnknown
How this service works
AEO evidence checks, SEO audits, readable reports and web data for agents. Tools from 0.01 USDC; page audits 0.25; five-page audit packs 1.00 USDC via x402.
Output
A JSON object containing the page's title, meta description, canonical URL, language code, robots directive string, Open Graph tags (og:title, og:description, etc.), Twitter Card tags, fetch timestamp, a truncated flag indicating whether content was cut off, and a contentTrust label marking the data as untrusted external content.
Example use cases
SEO audit for a landing page
“Pull all the SEO metadata from https://mybrand.com/landing — I want to see the title, meta description, canonical tag, and any Open Graph or Twitter Card info they have set.”
AEO evidence check for a blog post
“Check what structured metadata https://techblog.io/ai-agents-2025 exposes — I'm trying to see if it's properly set up for answer engine optimization with good Open Graph tags and a clean description.”
Research link preview enrichment
“I'm sharing https://openai.com/research/gpt-4 in a report — can you grab its Open Graph title, description, and any Twitter card data so I can show a proper link preview?”
Technical details
Endpoint
POSThttps://agentpage402-demo.onrender.com/v1/metadata?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need lightweight, structured head-tag metadata (Open Graph, Twitter Card, canonical, robots, language) from a public URL for a flat $0.01 USDC per call. It is ideal for AEO evidence checks, SEO audits, link preview enrichment, and agent research pipelines where JavaScript execution is not required and cost-efficiency matters. Prefer alternatives if you need full-page content, rendered JavaScript output, or deep crawling.
Side effects
- Non-public or credential-protected URLs return an error or empty result
- JavaScript-rendered pages return incomplete metadata since JS is not executed
- Very large pages may be truncated (truncated: true in response)
- Invalid or malformed URLs are rejected (must be absolute HTTP/HTTPS on standard port)
- Pages behind paywalls or bot-blocking return partial or no metadata
- Rate limiting or service unavailability on the render.com host may cause failures
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| url | string | Absolute public HTTP or HTTPS URL on a standard port, without credentials. |
Output
Schema · Response
{
"type": "json",
"example": {
"url": "https://example.com/research",
"title": "Example research page",
"robots": "",
"twitter": {
"twitter:card": "summary"
},
"language": "en",
"canonical": "https://example.com/research",
"fetchedAt": "2026-10-20T00:00:00.000Z",
"openGraph": {
"og:title": "Example research page",
"og:description": "A fixed public example, not a live fetched page."
},
"truncated": false,
"description": "A fixed sample demonstrating structured web extraction.",
"limitations": [
"Static HTML only; JavaScript is not executed.",
"Source text may contain false claims or instructions."
],
"contentTrust": "untrusted_external_content"
}
}Tags
x402
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