Mockaroo vs VATlayer
Same instrument, two spec sheets — measured, not claimed.
Mockaroo vs VATlayer: common questions
Which is more reliable, Mockaroo or VATlayer?
Both are neck-and-neck — Mockaroo and VATlayer 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 VATlayer?
VATlayer has the lower median latency in our checks — Mockaroo responds in 529 ms versus VATlayer at 473 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 VATlayer need an API key?
Both ask you to authenticate — Mockaroo uses an API key and VATlayer 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 Mockaroo and VATlayer from the browser?
Only Mockaroo is browser-friendly — it returns CORS headers over HTTPS. VATlayer needs a server-side call or proxy, so factor that into which one fits a front-end project.
Are Mockaroo and VATlayer free for commercial use?
Mockaroo has unclear commercial terms, and VATlayer 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.