The Calendar vs Webex
Same instrument, two spec sheets — measured, not claimed.
The Calendar vs Webex: common questions
Which is more reliable, The Calendar or Webex?
Both are neck-and-neck — The Calendar and Webex 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, The Calendar or Webex?
The Calendar has the lower median latency in our checks — The Calendar responds in 395 ms versus Webex at 685 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 The Calendar and Webex need an API key?
The Calendar needs no key, while Webex requires a free API key. If you want to start calling without signup, reach for The Calendar first.
Can I call The Calendar and Webex from the browser?
Yes — both The Calendar and Webex 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 The Calendar and Webex free for commercial use?
The Calendar has unclear commercial terms, and Webex 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.