# Formwerk iframe Form Method Checker

> Formwerk iframe Form Method Checker is a paid API for AI agents from formwerk.halowerk.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).

Inspects iframes on a given webpage and reports the HTTP form submission method used within them.

## Facts

- Endpoint: POST https://formwerk.halowerk.com/v1/pruef/formwerk/methode/iframe
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/formwerk-iframe-form-method-checker-edbcc16c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_xY1sakouPQtV71Xm4Ccsy

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 formwerk-iframe-form-method-checker-edbcc16c -d '<json body>'
```

Example prompt: Check what form submission method (GET or POST) is used inside the iframes on https://example.com — use a CSS selector like 'iframe#contact-frame' if you need to target a specific one.

## When to prefer this

Use this endpoint when you need to specifically audit the HTTP form submission method (GET vs POST) of forms embedded inside iframes on a webpage, as opposed to top-level page forms or other embedded objects like pixels or banners. It is particularly useful for security reviews, compliance checks, and QA automation targeting iframe-embedded forms.

## Known failure modes

- URL is not publicly accessible or returns an error
- No iframe found on the target page
- CSS selector matches no elements or multiple ambiguous elements
- Target page blocks automated access (403/robots)
- iframe content is cross-origin and inaccessible
- Malformed or too-long URL input

## How this service works

Prüft am Objekt iframe den Befund verwendete Formularmethode.

## Output

Returns findings about the form submission method (e.g. GET or POST) detected within iframes at the specified URL, including which iframe was inspected and what method was found.

## 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/formwerk-iframe-form-method-checker-edbcc16c/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)