Cisco Spark vs OpenHolidays API
Same instrument, two spec sheets — measured, not claimed.
Cisco Spark vs OpenHolidays API: common questions
Which is more reliable, Cisco Spark or OpenHolidays API?
Both are neck-and-neck — Cisco Spark and OpenHolidays API each measure 100% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.
Which is faster, Cisco Spark or OpenHolidays API?
OpenHolidays API has the lower median latency in our checks — Cisco Spark responds in 1608 ms versus OpenHolidays API at 533 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 Cisco Spark and OpenHolidays API need an API key?
OpenHolidays API needs no key, while Cisco Spark requires a free API key. If you want to start calling without signup, reach for OpenHolidays API first.
Can I call Cisco Spark and OpenHolidays API from the browser?
Yes — both Cisco Spark and OpenHolidays API 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 Cisco Spark and OpenHolidays API free for commercial use?
Cisco Spark has unclear commercial terms, and OpenHolidays API 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.