Open Dog Registry vs Cat Facts
Same instrument, two spec sheets — measured, not claimed.
Open Dog Registry vs Cat Facts: common questions
Which is more reliable, Open Dog Registry or Cat Facts?
Only Cat Facts is on our probe schedule so far (—% uptime over 90 days). The other is catalogued but not yet live-checked, so we can't compare measured reliability head-to-head — check the uncovered API's own status page for now.
Do Open Dog Registry and Cat Facts need an API key?
Cat Facts needs no key, while Open Dog Registry requires a free API key. If you want to start calling without signup, reach for Cat Facts first.
Can I call Open Dog Registry and Cat Facts from the browser?
Yes — both Open Dog Registry 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 Open Dog Registry and Cat Facts free for commercial use?
Open Dog Registry 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.