BMI Calculator API vs OpenF1
Same instrument, two spec sheets — measured, not claimed.
BMI Calculator API vs OpenF1: common questions
Which is more reliable, BMI Calculator API or OpenF1?
On our scheduled checks, BMI Calculator API leads on measured uptime — BMI Calculator API at 100% versus OpenF1 at 47.1% 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, BMI Calculator API or OpenF1?
OpenF1 has the lower median latency in our checks — BMI Calculator API responds in 1350 ms versus OpenF1 at 747 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 BMI Calculator API and OpenF1 need an API key?
Neither needs a paid key — BMI Calculator API is callable with no signup, and OpenF1 is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call BMI Calculator API and OpenF1 from the browser?
Yes — both BMI Calculator API and OpenF1 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 BMI Calculator API and OpenF1 free for commercial use?
BMI Calculator API has unclear commercial terms, and OpenF1 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.