# AgentShelf CSS Title Extractor

> AgentShelf CSS Title Extractor is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.008/call, status unknown (last checked 2026-10-01).

Extracts the document title text from a public webpage URL or raw HTML string using CSS title selector, with SSRF protection.

## Facts

- Endpoint: POST https://agentshelf.syntexa.ch/v1/css-title?utm_source=zero.xyz
- Price: $0.008/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-01
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agentshelf-css-title-extractor-376fec64
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_TFApGKmeGMpwLH2tpKRD7

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-css-title-extractor-376fec64 -d '<json body>'
```

Example prompt: Can you grab the document title from https://example.com/some-article for me?

## When to prefer this

Use this endpoint when you need to quickly extract the document title from a public webpage by URL or from a raw HTML string, with the assurance of SSRF safety. Prefer the free sandbox POST /v1/sandbox/css-title first if available. Choose this paid endpoint when the sandbox is unavailable or rate-limited, and you need reliable title extraction at $0.008 USDC per call.

## Known failure modes

- URL is unreachable or returns a non-200 status — service returns an error response
- SSRF guard blocks private/internal IP addresses or localhost URLs — request rejected
- Page has no <title> tag — returns empty or null title
- HTML input exceeds 200,000 character limit — request rejected
- URL shorter than 8 characters or longer than 2048 characters — validation error
- Malformed HTML where title tag cannot be parsed — may return empty result

## How this service works

Call when an agent needs document title text via title from a public page or HTML (SSRF-safe). Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/css-title first.

## Output

Returns the extracted text content of the HTML <title> element from the given URL or HTML input. Typically a short string representing the page's document title.

## 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 charset=\"utf-8\"><meta name=\"description\" content=\"Desc\">\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-css-title-extractor-376fec64/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)