Postali vs Smappee API

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

Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms69809
P95 · ms8241644
AuthnoneapiKey
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — no key, no signup, no monthly limit (per site)Free tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Postali vs Smappee API: common questions

Which is more reliable, Postali or Smappee API?

Both are neck-and-neck — Postali and Smappee API each measure 100% 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.

Which is faster, Postali or Smappee API?

Postali has the lower median latency in our checks — Postali responds in 69 ms versus Smappee API at 809 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.

Do Postali and Smappee API need an API key?

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

Can I call Postali and Smappee API from the browser?

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

Are Postali and Smappee API free for commercial use?

Postali has unclear commercial terms, and Smappee 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.