F1 API vs Open Disease
Same instrument, two spec sheets — measured, not claimed.
F1 API vs Open Disease: common questions
Which is more reliable, F1 API or Open Disease?
On our scheduled checks, Open Disease leads on measured uptime — F1 API at 45.1% versus Open Disease at 99.02% 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, F1 API or Open Disease?
Open Disease has the lower median latency in our checks — F1 API responds in 4909 ms versus Open Disease at 451 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 F1 API and Open Disease need an API key?
Neither needs a paid key — F1 API is callable with no signup, and Open Disease is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call F1 API and Open Disease from the browser?
Yes — both F1 API and Open Disease 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 F1 API and Open Disease free for commercial use?
F1 API has unclear commercial terms, and Open Disease 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.