# agentshelf.syntexa.ch XPath Input Type Extractor

> agentshelf.syntexa.ch XPath Input Type Extractor is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-29).

Extracts the `type` attribute values from all `<input>` elements on a public webpage or HTML snippet using the XPath expression `//input/@type`.

## Facts

- Endpoint: POST https://agentshelf.syntexa.ch/v1/xpath-input-type?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agentshelf-syntexa-ch-xpath-input-type-extractor-35b69fa3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_dEPD2s6RjDjyQ-9aYc3hE

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-input-type-extractor-35b69fa3 -d '<json body>'
```

Example prompt: Can you extract all the input type attributes from the forms on https://example.com/register — I want to know what kinds of fields they use, like text, email, password, hidden, etc.

## When to prefer this

Use this endpoint when you specifically need to enumerate the `type` attributes of `<input>` elements on a public page or HTML blob via XPath. It is SSRF-safe and costs only $0.001 USDC per call. Prefer the free sandbox POST /v1/sandbox/xpath-input-type when available. Choose this over generic HTML scrapers when you need a targeted, low-cost extraction of just input type attributes without parsing full DOM structures.

## Known failure modes

- URL is unreachable or returns a non-200 status — extraction fails with an error
- SSRF-blocked URLs (private IP ranges, localhost) are rejected for security
- HTML exceeds 200,000 character limit — request rejected
- Page has no <input> elements or none have a type attribute — returns empty result
- Malformed HTML may result in incomplete or empty extraction
- URL shorter than 8 characters or longer than 2048 characters rejected by schema validation

## How this service works

Call when an agent needs type attributes of //input via //input/@type from a public page or HTML (SSRF-safe). Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/xpath-input-type first.

## Output

A list of `type` attribute values from all `<input>` elements found on the page or in the provided HTML, such as ['text', 'email', 'password', 'hidden', 'submit']. Returns an empty list if no input elements or type attributes are found.

## 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-input-type-extractor-35b69fa3/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)