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Abstract Email Validation vs Global Shark Attack API

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

APIAbstract Email ValidationREACHABLE—Global Shark Attack APINEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — 100 requests/monthFree — limits not published
Rate limit100 requests/month on free planUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Abstract Email Validation vs Global Shark Attack API: common questions

Which is more reliable, Abstract Email Validation or Global Shark Attack API?

On our scheduled checks, Global Shark Attack API leads on measured uptime — Abstract Email Validation at —% versus Global Shark Attack API 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 Abstract Email Validation and Global Shark Attack API need an API key?

Global Shark Attack API needs no key, while Abstract Email Validation requires a free API key. If you want to start calling without signup, reach for Global Shark Attack API first.

Can I call Abstract Email Validation and Global Shark Attack API from the browser?

Yes — both Abstract Email Validation and Global Shark Attack API 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 Abstract Email Validation and Global Shark Attack API free for commercial use?

Abstract Email Validation has unclear commercial terms, and Global Shark Attack API 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.