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