Cross Universe vs Deck of Cards
Same instrument, two spec sheets — measured, not claimed.
Cross Universe vs Deck of Cards: common questions
Which is more reliable, Cross Universe or Deck of Cards?
On our scheduled checks, Cross Universe leads on measured uptime — Cross Universe at 100% versus Deck of Cards 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, Cross Universe or Deck of Cards?
Cross Universe has the lower median latency in our checks — Cross Universe responds in 40 ms versus Deck of Cards at 401 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 Cross Universe and Deck of Cards need an API key?
Neither needs a paid key — Cross Universe is callable with no signup, and Deck of Cards is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call Cross Universe and Deck of Cards from the browser?
Yes — both Cross Universe and Deck of Cards 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 Cross Universe and Deck of Cards free for commercial use?
Cross Universe has unclear commercial terms, and Deck of Cards 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.