ipapi.co vs Postali

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

Uptime · 30d
Uptime · 90d1.0%100%
Uptime · 30d1.7%100%
P50 · ms44069
P95 · ms440824
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — quota not published; returns 429 when exceededFree — no key, no signup, no monthly limit (per site)
Rate limitUnpublished (429 Quota exceeded)Unpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

ipapi.co vs Postali: common questions

Which is more reliable, ipapi.co or Postali?

On our scheduled checks, Postali leads on measured uptime — ipapi.co at 1.0% versus Postali at 100% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Which is faster, ipapi.co or Postali?

Postali has the lower median latency in our checks — ipapi.co responds in 440 ms versus Postali at 69 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 ipapi.co and Postali need an API key?

Neither needs a paid key — ipapi.co is callable with no signup, and Postali is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call ipapi.co and Postali from the browser?

Yes — both ipapi.co and Postali 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 ipapi.co and Postali free for commercial use?

ipapi.co has unclear commercial terms, and Postali 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.