The SMS Works API vs Webex
Same instrument, two spec sheets — measured, not claimed.
The SMS Works API vs Webex: common questions
Which is more reliable, The SMS Works API or Webex?
On our scheduled checks, The SMS Works API leads on measured uptime — The SMS Works API at 100% versus Webex 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, The SMS Works API or Webex?
The SMS Works API has the lower median latency in our checks — The SMS Works API responds in 518 ms versus Webex at 593 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 SMS Works API and Webex need an API key?
Both ask you to authenticate — The SMS Works API uses an API key and Webex uses an API key. Each key is free to obtain; the Auth and Card-required rows above spell out the signup terms.
Can I call The SMS Works API and Webex from the browser?
Yes — both The SMS Works API 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 SMS Works API and Webex free for commercial use?
The SMS Works API 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.