APIClaw vs Userstack
Same instrument, two spec sheets — measured, not claimed.
APIClaw vs Userstack: common questions
Which is more reliable, APIClaw or Userstack?
On our scheduled checks, APIClaw leads on measured uptime — APIClaw at 100% versus Userstack at 86.1% 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, APIClaw or Userstack?
Userstack has the lower median latency in our checks — APIClaw responds in 661 ms versus Userstack at 275 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 APIClaw and Userstack need an API key?
Both ask you to authenticate — APIClaw uses an API key and Userstack 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 APIClaw and Userstack from the browser?
Yes — both APIClaw 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 APIClaw and Userstack free for commercial use?
APIClaw 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.