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apilayer pdflayer vs Numverify

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

APIapilayer pdflayerHEALTHY94NumverifyHEALTHY93
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms422449
P95 · ms12251488
AuthapiKeyapiKey
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — key may be requiredFree tier — key may be required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

apilayer pdflayer vs Numverify: common questions

Which is more reliable, apilayer pdflayer or Numverify?

Both are neck-and-neck — apilayer pdflayer and Numverify 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, apilayer pdflayer or Numverify?

apilayer pdflayer has the lower median latency in our checks — apilayer pdflayer responds in 422 ms versus Numverify at 449 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 apilayer pdflayer and Numverify need an API key?

Both ask you to authenticate — apilayer pdflayer uses an API key and Numverify 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 apilayer pdflayer and Numverify from the browser?

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

Are apilayer pdflayer and Numverify free for commercial use?

apilayer pdflayer has unclear commercial terms, and Numverify 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.