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RBA Exchange Rates API vs Tomba email finder

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

APIRBA Exchange Rates APINEW—Tomba email finderNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeyapiKey
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

RBA Exchange Rates API vs Tomba email finder: common questions

Which is more reliable, RBA Exchange Rates API or Tomba email finder?

On our scheduled checks, Tomba email finder leads on measured uptime — RBA Exchange Rates API 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 RBA Exchange Rates API and Tomba email finder need an API key?

Both ask you to authenticate — RBA Exchange Rates API uses an API key and Tomba email finder 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 RBA Exchange Rates API and Tomba email finder from the browser?

Yes — both RBA Exchange Rates API and Tomba email finder send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.

Are RBA Exchange Rates API and Tomba email finder free for commercial use?

RBA Exchange Rates API 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.