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Operation 402 – HTML Metadata Extractor
x402
Operation 402 – HTML Metadata Extractor is a paid API for AI agents from operation-402-live.aeroworks.workers.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-21).
Extracts structured metadata from raw HTML input, returning parsed metadata fields as a JSON object.
Price / call$0.005
Success—
StatusUnknown
How this service works
Five paid data-processing APIs for AI agents. Payments use x402 v2 with USDC on Base mainnet.
Output
A JSON object with a 'result' field containing extracted metadata (e.g. title, description, Open Graph properties, and other meta tags) parsed from the submitted HTML, along with a 'service' field confirming 'HTML Metadata Extractor'.
Example use cases
SEO audit from raw HTML
“I've got the raw HTML from a competitor's homepage — can you pull out all the metadata, title, and description so I can see how they've set up their SEO?”
Open Graph preview enrichment
“Here's the HTML I fetched from a news article URL — extract the Open Graph metadata so I can generate a rich link preview card for it.”
Web crawler metadata pipeline
“I'm processing a batch of archived HTML pages and need you to extract the structured metadata from this one so I can index it: <html><head><title>Archive Page</title><meta property='og:title' content='Old Article'/></head><body></body></html>”
Technical details
Endpoint
POSThttps://operation-402-live.aeroworks.workers.dev/api/metadata?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you have raw HTML content in hand and need to quickly extract structured metadata (title, description, Open Graph tags) without running a full browser or HTML parser locally. It is well-suited for agent pipelines that fetch HTML upstream and need lightweight metadata enrichment at low cost ($0.005 USDC per call via x402 on Base mainnet).
Side effects
- Malformed or empty HTML returns minimal or empty result object
- Missing required 'html' field in request body causes validation error
- Very large HTML payloads may be truncated or rejected
- Payment failure via x402 prevents API access entirely
- Non-HTML text input may yield no meaningful metadata
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| html | string |
Output
Schema · Response
{
"type": "json",
"example": {
"result": {},
"service": "HTML Metadata Extractor"
}
}Tags
x402
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