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Bill Payment Validator vs Tomba email finder

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

APIBill Payment ValidatorNEW—Tomba email finderNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Bill Payment Validator vs Tomba email finder: common questions

Which is more reliable, Bill Payment Validator or Tomba email finder?

On our scheduled checks, Tomba email finder leads on measured uptime — Bill Payment Validator at —% versus Tomba email finder at —% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Do Bill Payment Validator and Tomba email finder need an API key?

Bill Payment Validator needs no key, while Tomba email finder requires a free API key. If you want to start calling without signup, reach for Bill Payment Validator first.

Can I call Bill Payment Validator and Tomba email finder from the browser?

Only Tomba email finder is browser-friendly — it returns CORS headers over HTTPS. Bill Payment Validator needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are Bill Payment Validator and Tomba email finder free for commercial use?

Bill Payment Validator has unclear commercial terms, and Tomba email finder 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.