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Registrum API vs Voidly

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

APIRegistrum APIHEALTHY96VoidlyHEALTHY78
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms2461238
P95 · ms15533894
AuthapiKeynone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearyes
Data licenseUnverifiedCC BY 4.0
Free tierFree tier — API key requiredFree (keyless data endpoints; Hydra ML endpoints need a key)
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Registrum API vs Voidly: common questions

Which is more reliable, Registrum API or Voidly?

Both are neck-and-neck — Registrum API and Voidly each measure 100% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.

Which is faster, Registrum API or Voidly?

Registrum API has the lower median latency in our checks — Registrum API responds in 246 ms versus Voidly at 1238 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.

Do Registrum API and Voidly need an API key?

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

Can I call Registrum API and Voidly from the browser?

Only Voidly is browser-friendly — it returns CORS headers over HTTPS. Registrum API needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are Registrum API and Voidly free for commercial use?

Registrum API has unclear commercial terms, and Voidly allows commercial use on its free tier. 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.