Piloterr vs QuickChart
Same instrument, two spec sheets — measured, not claimed.
Piloterr vs QuickChart: common questions
Which is more reliable, Piloterr or QuickChart?
Both are neck-and-neck — Piloterr and QuickChart 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, Piloterr or QuickChart?
QuickChart has the lower median latency in our checks — Piloterr responds in 635 ms versus QuickChart at 318 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 Piloterr and QuickChart need an API key?
QuickChart needs no key, while Piloterr requires a free API key. If you want to start calling without signup, reach for QuickChart first.
Can I call Piloterr and QuickChart from the browser?
Neither sends browser-friendly CORS headers reliably, so call Piloterr and QuickChart from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.
Are Piloterr and QuickChart free for commercial use?
Piloterr has unclear commercial terms, and QuickChart 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.