ELI vs Mockaroo

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

Uptime · 30d
Uptime · 90d99.02%100%
Uptime · 30d98.3%100%
P50 · ms591529
P95 · ms18172039
AuthapiKeyapiKey
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key may be required for productionFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

ELI vs Mockaroo: common questions

Which is more reliable, ELI or Mockaroo?

On our scheduled checks, Mockaroo leads on measured uptime — ELI at 99.02% versus Mockaroo at 100% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Which is faster, ELI or Mockaroo?

Mockaroo has the lower median latency in our checks — ELI responds in 591 ms versus Mockaroo at 529 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 ELI and Mockaroo need an API key?

Both ask you to authenticate — ELI 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 ELI and Mockaroo from the browser?

Yes — both ELI 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 ELI and Mockaroo free for commercial use?

ELI 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.