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Advice Slip vs Catherine Shulman's Quotes

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

APIAdvice SlipNEW—Catherine Shulman's QuotesNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesyes
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

Advice Slip vs Catherine Shulman's Quotes: common questions

Which is more reliable, Advice Slip or Catherine Shulman's Quotes?

On our scheduled checks, Catherine Shulman's Quotes leads on measured uptime — Advice Slip at —% versus Catherine Shulman's Quotes 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 Advice Slip and Catherine Shulman's Quotes need an API key?

Neither needs a paid key — Advice Slip is callable with no signup, and Catherine Shulman's Quotes is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Advice Slip and Catherine Shulman's Quotes from the browser?

Yes — both Advice Slip and Catherine Shulman's Quotes send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.

Are Advice Slip and Catherine Shulman's Quotes free for commercial use?

Advice Slip has unclear commercial terms, and Catherine Shulman's Quotes 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.