ISRO vs USPTO
Same instrument, two spec sheets — measured, not claimed.
ISRO vs USPTO: common questions
Which is more reliable, ISRO or USPTO?
Both are neck-and-neck — ISRO and USPTO 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, ISRO or USPTO?
ISRO has the lower median latency in our checks — ISRO responds in 369 ms versus USPTO at 1141 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 ISRO and USPTO need an API key?
Neither needs a paid key — ISRO is callable with no signup, and USPTO is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call ISRO and USPTO from the browser?
Only ISRO is browser-friendly — it returns CORS headers over HTTPS. USPTO needs a server-side call or proxy, so factor that into which one fits a front-end project.
Are ISRO and USPTO free for commercial use?
ISRO has unclear commercial terms, and USPTO 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.