Mockaroo vs Pythonium

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

Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms529855
P95 · ms20391794
AuthapiKeynone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Mockaroo vs Pythonium: common questions

Which is more reliable, Mockaroo or Pythonium?

Both are neck-and-neck — Mockaroo and Pythonium 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, Mockaroo or Pythonium?

Mockaroo has the lower median latency in our checks — Mockaroo responds in 529 ms versus Pythonium at 855 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 Mockaroo and Pythonium need an API key?

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

Can I call Mockaroo and Pythonium from the browser?

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

Are Mockaroo and Pythonium free for commercial use?

Mockaroo has unclear commercial terms, and Pythonium 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.