IP Data API vs Postali
Same instrument, two spec sheets — measured, not claimed.
IP Data API vs Postali: common questions
Which is more reliable, IP Data API or Postali?
On our scheduled checks, Postali leads on measured uptime — IP Data API at 99.02% 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, IP Data API or Postali?
Postali has the lower median latency in our checks — IP Data API responds in 124 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 IP Data API and Postali need an API key?
Neither needs a paid key — IP Data API 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 IP Data API and Postali from the browser?
Yes — both IP Data API 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 IP Data API and Postali free for commercial use?
IP Data API 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.