# tempo.halowerk.com – Video Modern Image Format Share Check

> tempo.halowerk.com – Video Modern Image Format Share Check 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 a video object (by URL) and returns a finding on the proportion of modern image formats used.

## Facts

- Endpoint: POST https://tempo.halowerk.com/v1/pruef/tempo/bildformat/video
- 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-video-modern-image-format-share-check-43f742d1
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_U0bqpUJ-H2ueCgwTMA2Qr

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-video-modern-image-format-share-check-43f742d1 -d '<json body>'
```

Example prompt: Check the video at https://example.com/promo.mp4 and tell me what share of its images are in modern formats like WebP or AVIF.

## When to prefer this

Use this endpoint when you specifically need to audit the modern image format adoption rate for a video object or video-embedding page, as opposed to a general webpage or iframe. It is distinct from the sibling iframe and page endpoints, and focuses exclusively on video resources.

## Known failure modes

- URL is not publicly accessible — returns an error or empty finding
- Video resource returns non-2xx HTTP status
- CSS selector matches no element or multiple elements (first match used)
- URL points to a non-video or non-HTML resource, leading to unexpected results
- Network timeout fetching the target resource
- Malformed URL input causes validation failure

## How this service works

Prüft am Objekt video den Befund Anteil moderner Bildformate.

## Output

Returns a structured finding indicating the proportion (share/percentage) of images associated with the video object that use modern formats (e.g. WebP, AVIF) versus legacy formats (e.g. JPEG, PNG, GIF), along with relevant metadata about the checked URL.

## 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-video-modern-image-format-share-check-43f742d1/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)