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ES·pera API vs SharpAPI

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

APIES·pera APIDYING37SharpAPIDEAD0
Uptime · 30d
Uptime · 90d0.0%0.0%
Uptime · 30d0.0%0.0%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverified
Free tierFree tier — API key required
Rate limitUnpublished
In directory since2026-09-212026-07-05
operationalpartialdownno data

ES·pera API vs SharpAPI: common questions

Which is more reliable, ES·pera API or SharpAPI?

Both are neck-and-neck — ES·pera API and SharpAPI each measure 0.0% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.

Do ES·pera API and SharpAPI need an API key?

ES·pera API needs no key, while SharpAPI requires a free API key. If you want to start calling without signup, reach for ES·pera API first.

Can I call ES·pera API and SharpAPI from the browser?

Only SharpAPI is browser-friendly — it returns CORS headers over HTTPS. ES·pera API needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are ES·pera API and SharpAPI free for commercial use?

ES·pera API has unclear commercial terms, and SharpAPI 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.