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EchoEmpire Page Metadata Extractor
x402
EchoEmpire Page Metadata Extractor is a paid API for AI agents from echoempire-demand-gateway.echoempire-in-co.workers.dev, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-31).
Fetches and returns structured metadata (title, description, Open Graph, Twitter Card, canonical URL, language) from any public HTML page URL, paid per-call in USDC via x402.
Price / call$0.003
Success—
StatusUnknown
How this service works
Pay-per-call web utilities in USDC on Base via x402 — no account, no API key. Every paid call is publicly verifiable at /ledger.json.
Output
A JSON object containing: the page's title, meta description, canonical URL, language code, HTTP status, resolved URL, and any Open Graph (og:*) and Twitter Card (twitter:*) tag key-value pairs found on the page.
Example use cases
Link preview card generation
“Fetch the title, description, og:image, and og:title from https://openai.com/blog/chatgpt so I can render a proper link preview card in my app.”
SEO metadata audit for a competitor
“Grab the full page metadata from https://notion.so — title, description, canonical URL, language, and any Open Graph or Twitter Card tags — so I can see how they've set up their SEO.”
Social share snippet extraction
“Pull the Twitter Card and Open Graph metadata from https://github.com/vercel/next.js so I know what title and image will show up when someone shares that link on social media.”
Technical details
Endpoint
GEThttps://echoempire-demand-gateway.echoempire-in-co.workers.dev/v1/page-metadata?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a quick, per-call metadata extraction from a single public HTML page without setting up an account or API key — ideal for link preview generation, SEO audits, or enriching URLs with structured metadata. It's well-suited for AI agent workflows that need on-demand, pay-as-you-go access to page metadata via USDC micropayments, with full on-chain verifiability of each call at /ledger.json.
Side effects
- Non-HTML or non-public URLs may return empty metadata fields
- Pages behind authentication or paywalls will not return useful metadata
- Payment failure via x402 will result in a 402 response before the call is processed
- Invalid or malformed URLs will cause the request to fail at input validation
- Pages with bot-blocking or CAPTCHA may return 403 or incomplete metadata
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"og": {},
"url": "https://example.com",
"lang": "en",
"title": "Example Domain",
"status": 200,
"twitter": {},
"canonical": null,
"description": null
}
}Tags
x402
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Zero review prompt (fires after every successful call)
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