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RubyGems vs Scrapfly

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

APIRubyGemsNEW—ScrapflyNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

RubyGems vs Scrapfly: common questions

Which is more reliable, RubyGems or Scrapfly?

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

RubyGems needs no key, while Scrapfly requires a free API key. If you want to start calling without signup, reach for RubyGems first.

Can I call RubyGems and Scrapfly from the browser?

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

Are RubyGems and Scrapfly free for commercial use?

RubyGems has unclear commercial terms, and Scrapfly 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.