# AgentShelf XPath og:title Extractor

> AgentShelf XPath og:title Extractor is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-02).

Extracts the Open Graph title (og:title) meta property from a public URL or raw HTML using an XPath selector, with SSRF protection.

## Facts

- Endpoint: POST https://agentshelf.syntexa.ch/v1/xpath-og-title?utm_source=zero.xyz
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agentshelf-xpath-og-title-extractor-3c794bb9
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_1ZeHULK0xZ2mv0ODcbqel

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-xpath-og-title-extractor-3c794bb9 -d '<json body>'
```

Example prompt: Can you grab the og:title meta tag from https://example.com/article for me? I need to know what title would show up when someone shares that page on social media.

## When to prefer this

Use this endpoint when you specifically need the og:title Open Graph meta property from a webpage or HTML snippet, particularly when you want the title that would appear in social media link previews. Prefer the free sandbox POST /v1/sandbox/xpath-og-title endpoint for testing. Choose this over generic CSS selector or full HTML scraping endpoints when only the og:title value is needed, since it is cheaper and purpose-built for this single extraction.

## Known failure modes

- URL is unreachable or returns non-200 status — extraction fails with network error
- No og:title meta tag present in the page — returns empty or null
- SSRF-blocked URL (private IP ranges, localhost) — rejected for security reasons
- HTML too large (over 200,000 characters) — request rejected
- Malformed HTML where XPath cannot parse the document — extraction may fail or return empty
- Invalid or inaccessible URL format — validation error

## How this service works

Call when an agent needs content of meta property=og:title via //meta[@property='og:title']/@content from a public page or HTML (SSRF-safe). Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/xpath-og-title first.

## Output

Returns the string value of the og:title meta property found via the XPath selector //meta[@property='og:title']/@content from the provided URL or HTML. If no og:title is present, returns an empty or null result.

## 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-xpath-og-title-extractor-3c794bb9/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)