# AgentShelf Meta Author Extractor

> AgentShelf Meta Author Extractor is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.006/call, status unknown (last checked 2026-10-02).

Extracts the meta author tag value from a public webpage or raw HTML document, SSRF-safe.

## Facts

- Endpoint: POST https://agentshelf.syntexa.ch/v1/profile-meta-author?utm_source=zero.xyz
- Price: $0.006/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agentshelf-meta-author-extractor-a5edaaeb
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Y4DPb3TI9sshxyNwQs4E0

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 agentshelf-meta-author-extractor-a5edaaeb -d '<json body>'
```

Example prompt: Can you extract the meta author from this page: https://example.com/article/my-post?

## When to prefer this

Use this endpoint when you need only the meta author value from a page and want a cheap ($0.006 USDC), focused extraction rather than a full-page scrape. Prefer the free sandbox POST /v1/sandbox/profile-meta-author for testing. Choose this over general HTML parsers when SSRF safety is required and you are operating in an agentic pipeline that needs reliable, single-field extraction.

## Known failure modes

- URL is unreachable or returns a non-200 status — extraction fails with an error
- Page has no meta author tag — returns empty or null result
- Provided HTML exceeds 200,000 character limit — request rejected
- URL is blocked by SSRF protection rules — request rejected
- Malformed URL or HTML below minimum length — validation error

## How this service works

Call when an agent needs the meta author extracted from a public page or HTML (SSRF-safe). Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/profile-meta-author first.

## Output

Returns the value of the HTML <meta name='author'> tag extracted from the provided URL (fetched SSRF-safely) or raw HTML string. If no author meta tag is present, the response will indicate absence.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "url": {
   "type": "string",
   "maxLength": 2048,
   "minLength": 8,
   "description": "Public page to fetch. The selector or profile is fixed by the SKU. Provide url or html."
  },
  "html": {
   "type": "string",
   "examples": [
    "<!doctype html><html lang=\"en\"><head><title>Hello</title>\n<meta name=\"description\" content=\"Desc\"><meta property=\"og:title\" content=\"OG\">\n<link rel=\"canonical\" href=\"https://example.com/\"><link rel=\"icon\" href=\"/favicon.ico\">\n</head><body><h1>Hello</h1><a href=\"https://example.com/a\">A</a></body></html>"
   ],
   "maxLength": 200000,
   "minLength": 1,
   "description": "HTML to extract from locally. Provide html or url. When both are set, html is used."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agentshelf-meta-author-extractor-a5edaaeb/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agentshelf.syntexa.ch](https://www.zero.xyz/host/agentshelf.syntexa.ch/llms.txt)