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Harry Potter API vs Rules of Acquisition

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

APIHarry Potter APINEW—Rules of AcquisitionNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Harry Potter API vs Rules of Acquisition: common questions

Which is more reliable, Harry Potter API or Rules of Acquisition?

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

Neither needs a paid key — Harry Potter API is callable with no signup, and Rules of Acquisition is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Harry Potter API and Rules of Acquisition from the browser?

Yes — both Harry Potter API and Rules of Acquisition 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 Rules of Acquisition free for commercial use?

Harry Potter API has unclear commercial terms, and Rules of Acquisition 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.