Numverify vs ReqRes
Same instrument, two spec sheets — measured, not claimed.
Numverify vs ReqRes: common questions
Which is more reliable, Numverify or ReqRes?
Both are neck-and-neck — Numverify and ReqRes 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, Numverify or ReqRes?
ReqRes has the lower median latency in our checks — Numverify responds in 449 ms versus ReqRes at 256 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 Numverify and ReqRes need an API key?
ReqRes needs no key, while Numverify requires a free API key. If you want to start calling without signup, reach for ReqRes first.
Can I call Numverify and ReqRes from the browser?
Neither sends browser-friendly CORS headers reliably, so call Numverify and ReqRes from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.
Are Numverify and ReqRes free for commercial use?
Numverify has unclear commercial terms, and ReqRes 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.