# Tempo Halowerk TLS Negotiation Time Check for Scripts

> Tempo Halowerk TLS Negotiation Time Check for Scripts 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 TLS handshake/negotiation time for a script object at a given URL, returning a performance finding.

## Facts

- Endpoint: POST https://tempo.halowerk.com/v1/pruef/tempo/tls-zeit/skript
- 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-tls-negotiation-time-check-for-scripts-f300086c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_uPIKTHpu4W_95hr59yqhE

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-tls-negotiation-time-check-for-scripts-f300086c -d '<json body>'
```

Example prompt: Can you check how long the TLS negotiation takes for the script at https://example.com/assets/main.js and tell me if there's a performance issue?

## When to prefer this

Use this endpoint when you specifically need to measure TLS negotiation time for a script (JavaScript) resource. Choose this over general page-level TLS checks when you want granular per-asset TLS timing for script objects specifically, and when you need a structured performance finding rather than a raw timing measurement.

## Known failure modes

- Invalid or unreachable URL returns an error
- URL points to a non-script or private/internal resource and cannot be reached
- TLS handshake fails entirely (e.g. certificate error) resulting in an error finding
- CSS selector matches no element or multiple elements (first match used)
- Request times out if the remote server is too slow

## How this service works

Prüft am Objekt skript den Befund TLS-Aushandlungszeit.

## Output

Returns a performance finding containing the measured TLS negotiation (handshake) time for the specified script object, indicating how long it takes to establish a secure connection when loading that script resource.

## 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-tls-negotiation-time-check-for-scripts-f300086c/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)