# AgentShelf CSS Blockquote Extractor

> AgentShelf CSS Blockquote Extractor is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.007/call, status unknown (last checked 2026-10-02).

Extracts blockquote text from a public web page URL or raw HTML using CSS selectors, with SSRF protection.

## Facts

- Endpoint: POST https://agentshelf.syntexa.ch/v1/css-blockquote?utm_source=zero.xyz
- Price: $0.007/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agentshelf-css-blockquote-extractor-7953f90f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Pf7DmQu8VTi5wIfKJZRnj

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-blockquote-extractor-7953f90f -d '<json body>'
```

Example prompt: Can you pull out all the blockquote text from this page: https://example.com/article — I want to see the quoted passages from the HTML.

## When to prefer this

Use this endpoint when an agent needs to extract blockquote-specific content from a public web page or raw HTML and SSRF safety is required. Prefer the unpaid sandbox endpoint POST /v1/sandbox/css-blockquote for testing or when cost is a concern. Choose this over generic scrapers when you specifically need blockquote elements identified by CSS semantics rather than full-page text extraction.

## Known failure modes

- SSRF-blocked URLs (internal or private IP ranges) will be rejected
- Malformed or excessively long HTML may fail parsing
- Pages with no blockquote elements return empty results
- Invalid URL format returns an error
- HTML exceeding 200,000 characters is rejected
- Network timeout or unreachable URLs cause failure
- JavaScript-rendered blockquotes not present in raw HTML will be missed

## How this service works

Call when an agent needs blockquote text via blockquote from a public page or HTML (SSRF-safe). Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/css-blockquote first.

## Output

Returns the text content of blockquote elements found in the provided URL or HTML, extracted via CSS selector matching. Likely includes one or more quoted text strings parsed from <blockquote> tags on the page.

## 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-blockquote-extractor-7953f90f/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)