# tempo.halowerk.com – Bild Modernes Bildformat Anteil

> tempo.halowerk.com – Bild Modernes Bildformat Anteil is a paid API for AI agents from tempo.halowerk.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).

Checks what proportion of images on a given URL use modern image formats (e.g. WebP, AVIF).

## Facts

- Endpoint: POST https://tempo.halowerk.com/v1/pruef/tempo/bildformat/bild
- 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/tempo-halowerk-com-bild-modernes-bildformat-anteil-7ad88b7b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_L2KJY98bmAdyP3iZhCorm

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-bild-modernes-bildformat-anteil-7ad88b7b -d '<json body>'
```

Example prompt: Check what share of the images on https://www.example.com use modern formats like WebP or AVIF — I want to know how well optimized the image formats are on that page.

## When to prefer this

Use this endpoint when you specifically need to measure or audit the share of images using modern next-gen formats (WebP, AVIF, etc.) on a public URL. It is distinct from general page load time or total resource count checks, and is ideal for image optimization audits, performance reports, or CI/CD regression checks targeting image format efficiency.

## Known failure modes

- URL is not publicly accessible — endpoint cannot fetch the resource
- No images found at the target URL or selector returns no matching image element
- Target server blocks bot/crawler user agents, resulting in incomplete data
- Invalid or malformed URL provided — request rejected
- CSS selector matches no element or multiple ambiguous elements if specified

## How this service works

Prüft am Objekt bild den Befund Anteil moderner Bildformate.

## Output

Returns an audit finding (Befund) indicating the proportion or count of images on the target URL that use modern image formats such as WebP, AVIF, or similar next-generation formats, relative to the total number of images loaded.

## 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-bild-modernes-bildformat-anteil-7ad88b7b/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)