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tempo.halowerk.com – TTFB Check for API Response
x402
tempo.halowerk.com – TTFB Check for API Response 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).
Measures the Time To First Byte (TTFB) for an API response object at a given URL, returning performance benchmark data.
Price / call$0.001
Success—
StatusUnknown
How this service works
Prüft am Objekt api-antwort den Befund Zeit bis zum ersten Byte.
Output
Returns a performance finding (Befund) for the TTFB (Zeit bis zum ersten Byte) of the targeted API response, including the measured time value and associated benchmark data indicating how quickly the server begins sending response data.
Example use cases
API latency audit before launch
“Before we go live, can you measure the time to first byte for our API endpoint at https://api.myproduct.com/v2/users and tell me how it performs?”
Third-party API performance check
“I'm integrating with a payment provider — can you benchmark the TTFB of https://payments.provider.com/api/status so I know if it might slow down our checkout?”
Ongoing API response monitoring
“Check the time to first byte for https://data.myservice.com/api/feed — I want to know if it's getting slower than usual.”
Technical details
Endpoint
POSThttps://tempo.halowerk.com/v1/pruef/tempo/ttfb/api-antwortWhen to prefer
Use this endpoint when you specifically need to measure Time To First Byte (TTFB) for an API response object — not a webpage, font, image, or stylesheet. It is specialized for API endpoint latency profiling. Prefer this over generic HTTP timing tools when you need structured, actionable TTFB findings compatible with the tempo.halowerk.com performance audit framework. It pairs naturally with sibling endpoints measuring connection setup time, DNS resolution, and TLS handshake for full network timing breakdowns.
Side effects
- Target URL unreachable or returns non-200 status — measurement may fail or return error finding
- URL exceeds 2048 character limit — request rejected with validation error
- Private/internal IP addresses or non-public URLs rejected
- Slow or timing-out endpoints may produce incomplete TTFB data
- Invalid CSS selector format causes request failure
- DNS resolution failure for the target host
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| ziel | — |
Tags
x402
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