FreeIPAPI vs Open Topo Data
Same instrument, two spec sheets — measured, not claimed.
FreeIPAPI vs Open Topo Data: common questions
Which is more reliable, FreeIPAPI or Open Topo Data?
On our scheduled checks, Open Topo Data leads on measured uptime — FreeIPAPI at —% versus Open Topo Data 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 FreeIPAPI and Open Topo Data need an API key?
Neither needs a paid key — FreeIPAPI is callable with no signup, and Open Topo Data is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call FreeIPAPI and Open Topo Data from the browser?
Neither sends browser-friendly CORS headers reliably, so call FreeIPAPI and Open Topo Data from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.
Are FreeIPAPI and Open Topo Data free for commercial use?
FreeIPAPI has unclear commercial terms, and Open Topo Data 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.