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Abstract Email Validation vs Shodan EntityDB API

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

APIAbstract Email ValidationREACHABLE—Shodan EntityDB APINEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSyesno
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 Shodan EntityDB API: common questions

Which is more reliable, Abstract Email Validation or Shodan EntityDB API?

On our scheduled checks, Shodan EntityDB API leads on measured uptime — Abstract Email Validation at —% versus Shodan EntityDB 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 Shodan EntityDB API need an API key?

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

Can I call Abstract Email Validation and Shodan EntityDB API from the browser?

Only Abstract Email Validation is browser-friendly — it returns CORS headers over HTTPS. Shodan EntityDB API needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are Abstract Email Validation and Shodan EntityDB API free for commercial use?

Abstract Email Validation has unclear commercial terms, and Shodan EntityDB 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.