# AgentShelf CSS Select Name

> AgentShelf CSS Select Name is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.004/call, status unknown (last checked 2026-10-02).

Extracts values of the 'name' attribute from elements matching a CSS selector on a public webpage or raw HTML

## Facts

- Endpoint: POST https://agentshelf.syntexa.ch/v1/css-select-name?utm_source=zero.xyz
- Price: $0.004/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-select-name-73475bda
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_x70bGZUmC0f_9xJPtQJjY

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-select-name-73475bda -d '<json body>'
```

Example prompt: Can you extract all the 'name' attributes from the input fields on https://example.com/contact-form? Use the CSS selector 'input[type=text]'.

## When to prefer this

Use this endpoint when you need to extract 'name' attribute values from HTML elements on a public webpage or raw HTML using CSS selectors, especially when you want SSRF-safe remote fetching. Prefer the free unpaid POST /v1/sandbox/css-select-name first if available; fall back to this paid endpoint when the sandbox is unavailable or rate-limited. This is best for form analysis, scraping select/input field names, and lightweight DOM attribute extraction without spinning up a full browser.

## Known failure modes

- URL is blocked, private, or returns a non-200 status — endpoint will return an error
- HTML input exceeds 200,000 character limit — request rejected
- SSRF-blocked URL (private IP ranges, localhost) — request denied for security reasons
- CSS selector syntax is invalid — parse error returned
- No elements matching the selector are found — empty array returned
- URL is malformed or too short/long — validation error

## How this service works

Call when an agent needs select names via select[name] from a public page or HTML (SSRF-safe). Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/css-select-name first.

## Output

Returns an array of 'name' attribute values extracted from all HTML elements on the page or HTML input that match the provided CSS selector.

## 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-select-name-73475bda/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)