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Vextorium SEO Metadata Extractor
x402
Vextorium SEO Metadata Extractor is a paid API for AI agents from api.vextorium.com, paid per call via x402, $0.004/call, status unknown (last checked 2026-10-19).
Fetches and analyzes SEO and sharing metadata from a given URL, returning title, description, canonical, robots, Open Graph, Twitter Card, JSON-LD, H1/H2 tags, and SEO warnings.
Price / call$0.004
Success—
StatusUnknown
How this service works
SEO and sharing metadata of a page: title and description with length, canonical, robots, language, hreflang, Open Graph, Twitter Card, JSON-LD types, favicon, H1/H2, plus warnings (missing tags, noindex, multiple H1).
Output
Returns a JSON object with: HTTP status code, final URL after redirects, page language, title and description text with character lengths, canonical URL, robots directive, Open Graph object (url, type, image with dimensions, title, description), Twitter Card object (card type, image), JSON-LD types array, H1 and H2 heading arrays, favicon URL, hreflang array, and an array of SEO warnings (e.g. missing tags, noindex detected, multiple H1 tags).
Example use cases
Pre-publish SEO audit for a blog post
“Before I publish, can you check the SEO metadata on https://myblog.com/my-new-article — I want to see the title and description lengths, whether the canonical is set correctly, and any warnings like missing tags or multiple H1s?”
Verify social sharing tags before a campaign
“We're about to launch a social campaign — can you check https://mystore.com/sale-landing-page to make sure the Open Graph title, description, og:image, and Twitter Card are all properly set?”
Audit competitor page structured data
“Can you inspect https://competitor.com/homepage and tell me what JSON-LD structured data types they're using, what their H1 and H2 headings are, and whether they have hreflang tags?”
Technical details
Endpoint
POSThttps://api.vextorium.com/metadatos-seo-pago?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a comprehensive, single-call SEO and social metadata audit of a specific URL — especially if you want title/description length checks, Open Graph, Twitter Card, JSON-LD, hreflang, and structured SEO warnings (noindex, missing tags, multiple H1) all in one response. Ideal for agents performing pre-publish content audits, social sharing verification, or competitive SEO analysis without requiring browser automation.
Side effects
- URL is unreachable or returns a non-200 status — HTTP error code returned in the 'codigo' field
- Target page blocks crawlers — may return empty or partial metadata
- Invalid or malformed URL input — request fails with validation error
- Page loads content via JavaScript only — static metadata may be incomplete
- Timeout on slow or geographically distant pages — partial or null response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| url | string |
Output
Schema · Response
{
"type": "json",
"example": {
"h1": [
"Data APIs your AI agent pays for per call ."
],
"h2": [
"Why Vextorium",
"Services by sector",
"How it works",
"Solana",
"Tokenized stocks, AI agents & markets",
"Wallets & tokens (EVM)",
"DeFi & prices",
"FX & validation",
"Spain public data",
"Documents & data",
"Web & developer tools",
"Agent payment safety",
"Calculators & identifiers",
"Economy & official statistics",
"FAQ"
],
"avisos": [],
"codigo": 200,
"idioma": "en",
"robots": null,
"titulo": "Vextorium — The x402 Payment Engine",
"favicon": "https://vextorium.com/icono.svg",
"json_ld": [],
"twitter": {
"twitter:card": "summary_large_image",
"twitter:image": "https://vextorium.com/og.png"
},
"canonica": "https://vextorium.com/",
"hreflang": [],
"url_final": "https://vextorium.com/",
"open_graph": {
"og:url": "https://vextorium.com/",
"og:type": "website",
"og:image": "https://vextorium.com/og.png",
"og:title": "Vextorium — The x402 Payment Engine",
"og:description": "150 pay-per-call data APIs for AI agents. Pay in USDC on Solana or Base with x402. No accounts, no API keys.",
"og:image:width": "1200",
"og:image:height": "630"
},
"descripcion": "150 pay-per-call data APIs for AI agents: Solana and EVM on-chain data, tokenized stocks, DeFi, FX, validation and AI text tools. Pay in USDC via x402.",
"titulo_longitud": 35,
"descripcion_longitud": 151
}
}Tags
x402
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