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RainViewer vs Solematica

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

APIRainViewerNEW—SolematicaNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverified (attribution requested)Unverified
Free tierFree — limits not publishedFree public /providers endpoint; other endpoints need paid credits
Rate limitUnpublished100 req/window · 99 remaining · resets 900
In directory since2026-07-052026-07-05
operationalpartialdownno data

RainViewer vs Solematica: common questions

Which is more reliable, RainViewer or Solematica?

On our scheduled checks, Solematica leads on measured uptime — RainViewer at —% versus Solematica 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 RainViewer and Solematica need an API key?

Neither needs a paid key — RainViewer is callable with no signup, and Solematica is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call RainViewer and Solematica from the browser?

Only RainViewer is browser-friendly — it returns CORS headers over HTTPS. Solematica needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are RainViewer and Solematica free for commercial use?

RainViewer has unclear commercial terms, and Solematica 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.