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Harry Potter API vs Sirv

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

APIHarry Potter APINEW—SirvNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Harry Potter API vs Sirv: common questions

Which is more reliable, Harry Potter API or Sirv?

On our scheduled checks, Sirv leads on measured uptime — Harry Potter API at —% versus Sirv 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 Harry Potter API and Sirv need an API key?

Harry Potter API needs no key, while Sirv requires a free API key. If you want to start calling without signup, reach for Harry Potter API first.

Can I call Harry Potter API and Sirv from the browser?

Yes — both Harry Potter API and Sirv 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 Harry Potter API and Sirv free for commercial use?

Harry Potter API has unclear commercial terms, and Sirv 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.