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apilayer pdflayer vs Kroki

Same instrument, two spec sheets — measured, not claimed.

APIapilayer pdflayerNEW—KrokiNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — key may be requiredFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

apilayer pdflayer vs Kroki: common questions

Which is more reliable, apilayer pdflayer or Kroki?

On our scheduled checks, Kroki leads on measured uptime — apilayer pdflayer at —% versus Kroki at —% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Do apilayer pdflayer and Kroki need an API key?

Kroki needs no key, while apilayer pdflayer requires a free API key. If you want to start calling without signup, reach for Kroki first.

Can I call apilayer pdflayer and Kroki from the browser?

Yes — both apilayer pdflayer and Kroki send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.

Are apilayer pdflayer and Kroki free for commercial use?

apilayer pdflayer has unclear commercial terms, and Kroki has unclear commercial terms. We track service terms and the data license as separate fields — see the Commercial use and Data license rows above, and confirm both before shipping either in a paid product.