# HALOWERK formwerk – iframe Übermittlung-vor-Einwilligung Prüfung

> HALOWERK formwerk – iframe Übermittlung-vor-Einwilligung Prüfung is a paid API for AI agents from formwerk.halowerk.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-23).

Checks whether an iframe element on a webpage transmits data before user consent is given.

## Facts

- Endpoint: POST https://formwerk.halowerk.com/v1/pruef/formwerk/vor-einwilligung/iframe?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-23
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/halowerk-formwerk-iframe-bermittlung-vor-einwilligung-pr-fung-926ce57e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Sh4AjuboFo8tHzsz0SrJ9

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 halowerk-formwerk-iframe-bermittlung-vor-einwilligung-pr-fung-926ce57e -d '<json body>'
```

Example prompt: Check whether the iframe on https://example.com/contact transmits any data before the user gives consent — use the CSS selector '#contact-iframe' to target it specifically.

## When to prefer this

Use this endpoint when you need to specifically audit an iframe element for pre-consent data transmission as part of GDPR or ePrivacy compliance checks. It is more targeted than a general page-level consent audit and is ideal when you already know the iframe's CSS selector or URL and want a focused finding on transmission behavior before user opt-in.

## Known failure modes

- Target URL is unreachable or returns a non-200 HTTP status
- CSS selector matches no element or matches multiple elements ambiguously
- iframe is dynamically loaded and not detectable at crawl time
- URL exceeds the 2048-character limit
- Target is behind authentication or a firewall and cannot be accessed publicly
- Invalid or malformed URL provided in the 'ziel' field

## How this service works

Prüft am Objekt iframe den Befund Übermittlung vor Einwilligung.

## Output

Returns a compliance finding indicating whether the targeted iframe transmits data prior to user consent, including details about the nature of any detected pre-consent submissions.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "ziel": {
   "oneOf": [
    {
     "type": "string",
     "maxLength": 2048,
     "minLength": 1,
     "description": "Öffentliche HTTP(S)-Adresse; bei DNS-Befunden Domain oder öffentliche IP."
    },
    {
     "type": "object",
     "required": [
      "adresse"
     ],
     "properties": {
      "adresse": {
       "type": "string",
       "maxLength": 2048,
       "minLength": 1
      },
      "selektor": {
       "type": "string",
       "maxLength": 240,
       "minLength": 1,
       "description": "CSS-Selektor: genau ein Objekt, sonst erster Treffer des Objektfilters."
      },
      "vergleich": {
       "type": "string",
       "maxLength": 2048,
       "description": "Öffentliche Vergleichsadresse für Link-, Sitemap- oder Sprachbefunde."
      },
      "user_agent": {
       "type": "string",
       "pattern": "^[A-Za-z0-9_-]{1,80}$"
      },
      "dkim_selektor": {
       "type": "string",
       "pattern": "^[A-Za-z0-9_-]{1,63}$"
      }
     },
     "additionalProperties": false
    }
   ]
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/halowerk-formwerk-iframe-bermittlung-vor-einwilligung-pr-fung-926ce57e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from formwerk.halowerk.com](https://www.zero.xyz/host/formwerk.halowerk.com/llms.txt)