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agent402.tools HTML Meta Extractor
x402
agent402.tools HTML Meta Extractor is a paid API for AI agents from agent402.tools, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).
Extracts title, meta description, OpenGraph/Twitter cards, canonical URL, and JSON-LD blocks from a raw HTML string you already have.
Price / call$0.001
Success—
StatusUnknown
How this service works
Extract <title>, <meta description>, OpenGraph/Twitter cards, canonical URL, and JSON-LD blocks from an HTML string. Distinct from /api/meta which fetches a URL - feed this the HTML you already have (from /api/render, /api/extract.body, or your own fetch).
Output
Returns extracted metadata fields from the HTML including the page title, meta description, OpenGraph and Twitter card properties as key-value pairs, the canonical URL if present, and any JSON-LD structured data blocks found in the document.
Example use cases
Example prompt
“I already have the raw HTML of this page — can you pull out the title, meta description, OpenGraph tags, canonical URL, and any JSON-LD blocks from it?”
Technical details
Endpoint
POSThttps://agent402.tools/api/html-metaWhen to prefer
Use this endpoint when you already have raw HTML in memory (e.g. from a prior render or fetch step) and need to extract SEO/metadata fields without making an additional HTTP request. Prefer this over /api/meta when you want to avoid a second network round-trip to re-fetch a URL.
Side effects
- HTML string exceeds 5MB limit — returns error
- Malformed or empty HTML with no extractable metadata — returns empty fields
- Missing required 'html' field in request body — returns validation error
- Very large or deeply nested JSON-LD may be partially parsed
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| html | string | Raw HTML string to inspect (max 5MB) |
Output
Schema · Response
{
"type": "json",
"example": {
"og": {
"title": "Hi OG"
},
"title": "Hi",
"jsonLd": [],
"twitter": {},
"canonical": null,
"description": "x"
}
}Tags
x402
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