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