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x402-zadenworks Structured Data & Social Preview Validator
x402
x402-zadenworks Structured Data & Social Preview Validator is a paid API for AI agents from x402-zadenworks.zaden-gaming.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).
Validates JSON-LD structured data and social preview tags (Open Graph, Twitter Card) on up to 10 URLs, returning a grade, score, and prioritized issue list per page.
Price / call$0.01
Success—
StatusUnknown
How this service works
Fourteen pay-per-call web tools for AI agents, billed in USDC on Base with no account or API key. START WITH /audit -- one call returns a complete page health check (SEO + structured data + accessibility, optionally plus links and sitemap) with a single score and one worst-first findings list. The parts are also sold individually. SITE AUDIT: /seo (on-page SEO and meta tags), /links (broken links), /sitemap (robots.txt and XML sitemap crawlability), /structured (JSON-LD and social preview tags), /a11y (WCAG accessibility) -- each scored 0-100 with a prioritised issue list. READING: /read (clean markdown), /snap (screenshot, PDF or rendered HTML), /tables (every HTML table as structured JSON), /verify (does a claim actually appear on this page). MONITORING: /watch (has this page changed), /compare (what differs between two pages). Plus /rank (best x402 service for a task) and /batch (several operations behind one payment).
Output
A JSON array with one result object per URL, each containing: a letter grade (e.g. B-), a numeric score 0-100, a severity rating, boolean flags for Open Graph and Twitter Card presence, a list of structured data types found (e.g. Organization, Product), and a prioritized list of issues with descriptions.
Example use cases
Pre-launch social sharing audit
“Before we go live, check whether https://newproduct.com/, https://newproduct.com/features, and https://newproduct.com/pricing have proper Open Graph and Twitter Card tags set up, and let me know the score and any issues for each page.”
Diagnosing rich snippet failures
“My blog posts aren't showing rich results in Google — can you check https://myblog.com/post-1 and https://myblog.com/post-2 for JSON-LD structured data problems and tell me what types were found and what's wrong?”
Competitor structured data benchmarking
“Audit the structured data and social tags on https://competitor-a.com/ and https://competitor-b.com/ — I want to see their grades and what schema types they're using compared to what's missing.”
Technical details
Endpoint
POSThttps://x402-zadenworks.zaden-gaming.workers.dev/structuredWhen to prefer
Choose this endpoint when you specifically need to audit JSON-LD structured data, Open Graph, and Twitter Card tags — it returns a clean grade, score, and worst-first issue list per page in one call, with no API key or account required. Prefer the /audit endpoint if you also want SEO, accessibility, and link checking in a single call. Use /structured when you want only the social/schema layer, minimizing cost and response size.
Side effects
- Invalid or unreachable URL returns an error entry for that URL rather than aborting the whole batch
- More than 10 URLs submitted causes a validation error
- Pages with no HTML (e.g. PDFs, redirects to binary assets) may return empty structured data findings
- Payment failure (insufficient USDC balance) blocks the call entirely with a 402 response
- Rate limiting or bot-blocking on the target site may cause incomplete results
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"results": [
{
"url": "https://example.com/",
"grade": "B-",
"score": 80,
"issues": [
"No Twitter Card tag found -- X/Twitter will fall back to Open Graph tags or show no preview."
],
"severity": "warning",
"hasOpenGraph": true,
"hasTwitterCard": false,
"structuredDataFound": true,
"structuredDataTypes": [
"Organization"
]
}
]
}
}Tags
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