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Grass Touch API vs Public Time API

Same instrument, two spec sheets — measured, not claimed.

APIGrass Touch APINEW—Public Time APINEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSnono
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Grass Touch API vs Public Time API: common questions

Which is more reliable, Grass Touch API or Public Time API?

On our scheduled checks, Public Time API leads on measured uptime — Grass Touch API at —% versus Public Time API at —% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Do Grass Touch API and Public Time API need an API key?

Neither needs a paid key — Grass Touch API is callable with no signup, and Public Time API is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Grass Touch API and Public Time API from the browser?

Neither sends browser-friendly CORS headers reliably, so call Grass Touch API and Public Time API from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.

Are Grass Touch API and Public Time API free for commercial use?

Grass Touch API has unclear commercial terms, and Public Time 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.