# agentshelf.syntexa.ch XPath Blockquote Extractor

> agentshelf.syntexa.ch XPath Blockquote Extractor is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.008/call, status unknown (last checked 2026-10-02).

Extracts text content from all blockquote elements (//blockquote) in a public webpage or raw HTML using XPath, with SSRF protection.

## Facts

- Endpoint: POST https://agentshelf.syntexa.ch/v1/xpath-blockquote?utm_source=zero.xyz
- Price: $0.008/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agentshelf-syntexa-ch-xpath-blockquote-extractor-481cf538
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_f29Ca3eGpZExcUDVMbX9z

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-syntexa-ch-xpath-blockquote-extractor-481cf538 -d '<json body>'
```

Example prompt: Can you extract all the blockquote text from this article — here's the URL: https://example.com/article — I want every quoted passage on the page.

## When to prefer this

Use this endpoint when you need to specifically extract blockquote-tagged content from a public webpage or raw HTML snippet, and you require SSRF safety guarantees. Prefer the unpaid sandbox endpoint (POST /v1/sandbox/xpath-blockquote) for testing or free-tier use. Choose this over generic scrapers when you specifically need XPath-targeted blockquote extraction rather than full-page text or other element types.

## Known failure modes

- URL is unreachable or returns non-200 status — extraction fails with a fetch error
- SSRF-blocked URL (private IP ranges, internal hostnames) — rejected for security reasons
- HTML contains no blockquote elements — returns empty result
- HTML input exceeds 200,000 character limit — request rejected
- URL string shorter than 8 or longer than 2048 characters — validation error
- Malformed HTML that cannot be parsed — may return partial or empty results
- Payment of $0.008 USDC not provided — 402 Payment Required response

## How this service works

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

## Output

Returns the text content of all //blockquote elements found in the provided URL or HTML, typically as an array or concatenated list of quoted passages extracted via XPath.

## 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-syntexa-ch-xpath-blockquote-extractor-481cf538/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)