Cisco Spark vs FinSignals API
Same instrument, two spec sheets — measured, not claimed.
Cisco Spark vs FinSignals API: common questions
Which is more reliable, Cisco Spark or FinSignals API?
Both are neck-and-neck — Cisco Spark and FinSignals 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 FinSignals API?
FinSignals API has the lower median latency in our checks — Cisco Spark responds in 1608 ms versus FinSignals API at 312 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 FinSignals API need an API key?
FinSignals API needs no key, while Cisco Spark requires a free API key. If you want to start calling without signup, reach for FinSignals API first.
Can I call Cisco Spark and FinSignals API from the browser?
Yes — both Cisco Spark and FinSignals 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 FinSignals API free for commercial use?
Cisco Spark has unclear commercial terms, and FinSignals 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.