SpaceTradersAPI vs Zelda
Same instrument, two spec sheets — measured, not claimed.
SpaceTradersAPI vs Zelda: common questions
Which is more reliable, SpaceTradersAPI or Zelda?
Both are neck-and-neck — SpaceTradersAPI and Zelda 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, SpaceTradersAPI or Zelda?
Zelda has the lower median latency in our checks — SpaceTradersAPI responds in 946 ms versus Zelda at 903 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 SpaceTradersAPI and Zelda need an API key?
Zelda needs no key, while SpaceTradersAPI requires a free API key. If you want to start calling without signup, reach for Zelda first.
Can I call SpaceTradersAPI and Zelda from the browser?
Yes — both SpaceTradersAPI and Zelda 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 SpaceTradersAPI and Zelda free for commercial use?
SpaceTradersAPI has unclear commercial terms, and Zelda 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.