# x402 Web Tools – Web Page Metadata Extractor

> x402 Web Tools – Web Page Metadata Extractor is a paid API for AI agents from web.kagurazaka.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-29).

Fetches and returns structured metadata from a public web page, including title, description, canonical URL, language, author, dates, favicon, feeds, Open Graph/Twitter card tags, JSON-LD, and heading outline.

## Facts

- Endpoint: GET https://web.kagurazaka.dev/v1/metadata?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-web-tools-web-page-metadata-extractor-fb56f1dc
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_hUnoFG_DNAnvvRrh01MgO

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability x402-web-tools-web-page-metadata-extractor-fb56f1dc
```

Example prompt: Can you pull all the metadata from https://x402.org/ — I need the title, description, canonical URL, Open Graph tags, any RSS feeds, and the JSON-LD structured data?

## When to prefer this

Choose this endpoint when you need rich structured metadata from a public web page without full content extraction — ideal for SEO analysis, feed discovery, link preview generation, content enrichment, or verifying Open Graph/JSON-LD markup. Prefer it over full-page scrapers when you only need metadata fields rather than body content, and over DNS/link tools when the goal is page-level semantic information rather than network or link structure.

## Known failure modes

- Non-HTTPS or private URLs return an error or empty response
- Pages behind authentication or paywalls cannot be accessed
- Heavy JavaScript-rendered pages may return incomplete metadata if content is client-side only
- Invalid or malformed URLs cause a request validation error
- Timeout errors for very slow or unresponsive servers
- Pages with no structured metadata return empty arrays for feeds, JSON-LD, and Open Graph fields

## How this service works

Title, description, canonical URL, language, author, published and modified dates, favicon, RSS and Atom feeds, Open Graph and Twitter card tags, JSON-LD structured data and the h1/h2 outline of a public web page.

## Output

A JSON object containing: page title, meta description, canonical URL, language code, author, published and modified timestamps, favicon URL, list of RSS/Atom feed URLs, Open Graph properties (image, title, description, etc.), Twitter card tags, an array of JSON-LD structured data objects, and the h1/h2 heading outline of the page.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "url"
     ],
     "properties": {
      "url": {
       "type": "string",
       "description": "https URL of the page"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "lang": {},
      "feeds": {},
      "title": {},
      "json_ld": {},
      "canonical": {},
      "open_graph": {},
      "description": {}
     }
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "lang": "en-US",
  "feeds": [],
  "title": "x402",
  "json_ld": [],
  "canonical": "https://x402.org/",
  "open_graph": {
   "image": "https://x402.org/og.png",
   "title": "x402"
  },
  "description": "x402 is the internet's payment standard."
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-web-tools-web-page-metadata-extractor-fb56f1dc/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from web.kagurazaka.dev](https://www.zero.xyz/host/web.kagurazaka.dev/llms.txt)