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Affirmations.dev vs Catherine Shulman's Quotes

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

APIAffirmations.devNEW—Catherine Shulman's QuotesNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSnoyes
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

Affirmations.dev vs Catherine Shulman's Quotes: common questions

Which is more reliable, Affirmations.dev or Catherine Shulman's Quotes?

On our scheduled checks, Catherine Shulman's Quotes leads on measured uptime — Affirmations.dev 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 Affirmations.dev and Catherine Shulman's Quotes need an API key?

Neither needs a paid key — Affirmations.dev 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 Affirmations.dev and Catherine Shulman's Quotes from the browser?

Only Catherine Shulman's Quotes is browser-friendly — it returns CORS headers over HTTPS. Affirmations.dev needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are Affirmations.dev and Catherine Shulman's Quotes free for commercial use?

Affirmations.dev 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.