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Host.io vs Mockaroo

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

APIHost.ioREACHABLE—MockarooREACHABLE—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeyapiKey
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Host.io vs Mockaroo: common questions

Which is more reliable, Host.io or Mockaroo?

On our scheduled checks, Mockaroo leads on measured uptime — Host.io at —% versus Mockaroo 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 Host.io and Mockaroo need an API key?

Both ask you to authenticate — Host.io uses an API key and Mockaroo uses an API key. Each key is free to obtain; the Auth and Card-required rows above spell out the signup terms.

Can I call Host.io and Mockaroo from the browser?

Yes — both Host.io and Mockaroo 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 Host.io and Mockaroo free for commercial use?

Host.io has unclear commercial terms, and Mockaroo 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.