JPL Close Approach vs Keen IO
Same instrument, two spec sheets — measured, not claimed.
JPL Close Approach vs Keen IO: common questions
Which is more reliable, JPL Close Approach or Keen IO?
On our scheduled checks, Keen IO leads on measured uptime — JPL Close Approach at 98.0% versus Keen IO at 100% 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, JPL Close Approach or Keen IO?
Keen IO has the lower median latency in our checks — JPL Close Approach responds in 676 ms versus Keen IO at 667 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 JPL Close Approach and Keen IO need an API key?
JPL Close Approach needs no key, while Keen IO requires a free API key. If you want to start calling without signup, reach for JPL Close Approach first.
Can I call JPL Close Approach and Keen IO from the browser?
Neither sends browser-friendly CORS headers reliably, so call JPL Close Approach and Keen IO from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.
Are JPL Close Approach and Keen IO free for commercial use?
JPL Close Approach has unclear commercial terms, and Keen IO 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.