# tempo.halowerk.com – API-Antwort Moderner Bildformat-Anteil Prüfung

> tempo.halowerk.com – API-Antwort Moderner Bildformat-Anteil Prüfung is a paid API for AI agents from tempo.halowerk.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-16).

Checks the proportion of modern image formats served in an API response object from a given URL.

## Facts

- Endpoint: POST https://tempo.halowerk.com/v1/pruef/tempo/bildformat/api-antwort
- 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/tempo-halowerk-com-api-antwort-moderner-bildformat-anteil-pr-fung-bd611196
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_z9WOTXEIihF3nQ_fSFZ6-

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 tempo-halowerk-com-api-antwort-moderner-bildformat-anteil-pr-fung-bd611196 -d '<json body>'
```

Example prompt: Can you check what proportion of images served in the API response at https://api.example.com/products are in modern formats like WebP or AVIF?

## When to prefer this

Use this endpoint when you specifically want to audit the image formats returned by an API response object (not a rendered web page or standalone image resource). It is distinct from page-level or video-level image format checks offered by sibling endpoints, making it ideal for backend API quality assurance and developer performance audits targeting API payloads.

## Known failure modes

- Target URL unreachable or returns non-200 status — error returned
- URL is not a valid public HTTP/HTTPS address — validation error
- API response contains no detectable image references — empty or zero result
- CSS selector matches no element — first matching object used or empty result
- Response timeout for slow endpoints — timeout error
- Malformed URL input — schema validation error

## How this service works

Prüft am Objekt api-antwort den Befund Anteil moderner Bildformate.

## Output

Returns an audit finding indicating the proportion (share/ratio) of modern image formats (e.g. WebP, AVIF) among images found in the API response from the specified target URL, along with assessment details about image format modernization compliance.

## 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/tempo-halowerk-com-api-antwort-moderner-bildformat-anteil-pr-fung-bd611196/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from tempo.halowerk.com](https://www.zero.xyz/host/tempo.halowerk.com/llms.txt)