Httpbin vs Userstack
Same instrument, two spec sheets — measured, not claimed.
Httpbin vs Userstack: common questions
Which is more reliable, Httpbin or Userstack?
On our scheduled checks, Userstack leads on measured uptime — Httpbin at 66.7% versus Userstack 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, Httpbin or Userstack?
Userstack has the lower median latency in our checks — Httpbin responds in 785 ms versus Userstack at 443 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 Httpbin and Userstack need an API key?
Httpbin needs no key, while Userstack requires a free API key. If you want to start calling without signup, reach for Httpbin first.
Can I call Httpbin and Userstack from the browser?
Yes — both Httpbin and Userstack 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 Httpbin and Userstack free for commercial use?
Httpbin has unclear commercial terms, and Userstack 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.