caldays vs Grass Touch API
Same instrument, two spec sheets — measured, not claimed.
caldays vs Grass Touch API: common questions
Which is more reliable, caldays or Grass Touch API?
On our scheduled checks, caldays leads on measured uptime — caldays at 100% versus Grass Touch API at 2.9% 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, caldays or Grass Touch API?
caldays has the lower median latency in our checks — caldays responds in 149 ms versus Grass Touch API at 1701 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 caldays and Grass Touch API need an API key?
Neither needs a paid key — caldays is callable with no signup, and Grass Touch API is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call caldays and Grass Touch API from the browser?
Only caldays is browser-friendly — it returns CORS headers over HTTPS. Grass Touch API needs a server-side call or proxy, so factor that into which one fits a front-end project.
Are caldays and Grass Touch API free for commercial use?
caldays has unclear commercial terms, and Grass Touch API 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.