# CSS Input Name Extractor

> CSS Input Name Extractor is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-02).

Extracts input[name] attribute values from HTML form fields on a given public page URL or raw HTML string

## Facts

- Endpoint: POST https://agentshelf.syntexa.ch/v1/css-input-name?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/css-input-name-extractor-77536dbb
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_TvRnzEKrWDTm60bMoKlIh

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 css-input-name-extractor-77536dbb -d '<json body>'
```

Example prompt: Can you extract all the input[name] values from the HTML form on this page: https://example.com/contact — I need to know what field names the form uses?

## When to prefer this

Choose this endpoint when you need to programmatically discover form field names from a public web page or HTML snippet without building a full browser automation stack. Prefer the unpaid POST /v1/sandbox/css-input-name for testing or zero-cost use. Use this paid endpoint when you need reliable, SSRF-safe extraction in production agentic workflows at $0.001 USDC per call.

## Known failure modes

- Invalid or unreachable URL returns an error or empty result
- HTML too large (over 200,000 characters) is rejected
- SSRF-restricted internal URLs are blocked for security
- Page with no input[name] attributes returns an empty list
- Malformed HTML may cause incomplete parsing results

## How this service works

Call when an agent needs input names via input[name] from a public page or HTML (SSRF-safe). Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/css-input-name first.

## Output

Returns an array or list of name attribute values found in input elements on the provided page or HTML, enabling agents to understand form structure without manually inspecting markup

## 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/css-input-name-extractor-77536dbb/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)