arcsecond.io vs TensorFeed
Same instrument, two spec sheets — measured, not claimed.
arcsecond.io vs TensorFeed: common questions
Which is more reliable, arcsecond.io or TensorFeed?
Both are neck-and-neck — arcsecond.io and TensorFeed 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, arcsecond.io or TensorFeed?
TensorFeed has the lower median latency in our checks — arcsecond.io responds in 587 ms versus TensorFeed at 306 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 arcsecond.io and TensorFeed need an API key?
Neither needs a paid key — arcsecond.io is callable with no signup, and TensorFeed is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call arcsecond.io and TensorFeed from the browser?
Yes — both arcsecond.io and TensorFeed 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 arcsecond.io and TensorFeed free for commercial use?
arcsecond.io has unclear commercial terms, and TensorFeed 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.