# tempo.halowerk.com – API Response Total Load Time Check

> tempo.halowerk.com – API Response Total Load Time 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).

Measures and evaluates the total load time (Gesamtladezeit) of an API response endpoint via HTTP(S) performance testing.

## Facts

- Endpoint: POST https://tempo.halowerk.com/v1/pruef/tempo/gesamtzeit/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-response-total-load-time-check-80c56a1c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_JUS9s8m3Tjn_-IWoa82m4

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-response-total-load-time-check-80c56a1c -d '<json body>'
```

Example prompt: Check the total load time of my API at https://api.example.com/v1/data and tell me how long the full response takes to come back.

## When to prefer this

Use this endpoint when you specifically need to measure the total end-to-end load time of an API response (not just TTFB or TLS handshake time). Prefer this over sibling endpoints that measure connection setup time or TLS negotiation time when you need the full picture of API response completion. Best for auditing, benchmarking, or monitoring REST/HTTP APIs for overall response duration.

## Known failure modes

- Target URL is unreachable or returns non-2xx status — measurement may fail or return error
- URL is not a public HTTP(S) address — private/internal addresses rejected
- Invalid or malformed URL provided — input validation error
- Target API is too slow or times out — measurement may return timeout error
- CSS selector matches no element — first match fallback or error returned

## How this service works

Prüft am Objekt api-antwort den Befund Gesamtladezeit.

## Output

Returns a performance finding (Befund) for the total load time (Gesamtladezeit) of the targeted API response object, including the measured duration for the complete HTTP response cycle from request initiation to full data receipt.

## 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-response-total-load-time-check-80c56a1c/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)