# OG Title CSS Meta Extractor

> OG Title CSS Meta Extractor is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.006/call, status unknown (last checked 2026-09-29).

Extracts the og:title Open Graph meta tag content from a public URL or raw HTML string

## Facts

- Endpoint: POST https://agentshelf.syntexa.ch/v1/css-meta-og-title?utm_source=zero.xyz
- Price: $0.006/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/og-title-css-meta-extractor-74dec0e4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_WZne1gkNCGulx3cvgPGCB

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 og-title-css-meta-extractor-74dec0e4 -d '<json body>'
```

Example prompt: Can you grab the og:title meta tag content from https://example.com/article — the title that would show up in a social media link preview?

## When to prefer this

Use this endpoint when you need specifically the og:title Open Graph meta tag from a page — not the HTML <title> tag or other meta tags. Prefer the free sandbox variant (POST /v1/sandbox/css-meta-og-title) first to avoid the $0.006 USDC charge. Choose this paid endpoint when the sandbox is unavailable or rate-limited. It is SSRF-safe, so it's appropriate for agent pipelines that fetch URLs on behalf of users.

## Known failure modes

- URL is unreachable or returns non-200 status — extraction fails
- Page has no og:title meta tag — returns empty/null result
- HTML input exceeds 200,000 character limit — request rejected
- URL blocked by SSRF safety filter — request rejected
- Malformed HTML prevents CSS selector from matching — empty result
- URL string shorter than 8 characters or longer than 2048 characters — validation error

## How this service works

Call when an agent needs og:title content via meta[property='og:title'] from a public page or HTML (SSRF-safe). Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/css-meta-og-title first.

## Output

Returns the string content of the first meta[property='og:title'] tag found in the page or HTML — typically the Open Graph title used for social media link previews. Returns empty or null if no og:title tag is present.

## 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/og-title-css-meta-extractor-74dec0e4/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)