# Formwerk Banner Form Method Checker

> Formwerk Banner 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 2026-09-16).

Inspects a banner object on a web page and reports which HTTP form method it uses for submission.

## Facts

- Endpoint: POST https://formwerk.halowerk.com/v1/pruef/formwerk/methode/banner
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/formwerk-banner-form-method-checker-f58d47a6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_BuTE0HWwhlllWq-tmWS38

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-banner-form-method-checker-f58d47a6 -d '<json body>'
```

Example prompt: Check the form method used by the banner on https://example.com — I want to know if it's submitting via GET or POST.

## When to prefer this

Use this endpoint when you specifically need to audit or validate the HTTP form submission method (GET vs POST) used by a banner element on a public web page, as part of a web quality, security, or compliance check workflow. Prefer this over generic HTML parsers when you need a structured finding scoped exactly to the banner object and its form method.

## Known failure modes

- Target URL is unreachable or returns a non-200 status
- No banner element found on the page matching the selector
- Banner does not contain a form element
- Invalid or malformed URL provided
- CSS selector matches no elements or multiple ambiguous elements
- Page requires authentication to access

## How this service works

Prüft am Objekt banner den Befund verwendete Formularmethode.

## Output

Returns the finding for the 'banner' object's form method — specifically which HTTP method (e.g. GET or POST) the banner element uses for form submission, along with relevant diagnostic details about the inspected element.

## 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-banner-form-method-checker-f58d47a6/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)