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eNanoMapper database vs Sheet2API

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

APIeNanoMapper databaseNEW—Sheet2APINEW—
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

eNanoMapper database vs Sheet2API: common questions

Which is more reliable, eNanoMapper database or Sheet2API?

On our scheduled checks, Sheet2API leads on measured uptime — eNanoMapper database at —% versus Sheet2API 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 eNanoMapper database and Sheet2API need an API key?

eNanoMapper database needs no key, while Sheet2API requires a free API key. If you want to start calling without signup, reach for eNanoMapper database first.

Can I call eNanoMapper database and Sheet2API from the browser?

Only Sheet2API is browser-friendly — it returns CORS headers over HTTPS. eNanoMapper database needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are eNanoMapper database and Sheet2API free for commercial use?

eNanoMapper database has unclear commercial terms, and Sheet2API 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.