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NASA APOD vs Perplexity AI API

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

APINASA APODDEAD0Perplexity AI APIDEAD0
Uptime · 30d
Uptime · 90d0.0%0.0%
Uptime · 30d0.0%0.0%
P50 · ms——
P95 · ms——
AuthapiKeyapiKey
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useyesunclear
Data licensePublic domain (US Gov)Unverified
Free tier1,000 req/hour with free keyFree tier — API key required
Rate limitDEMO_KEY: 30/hour, 50/dayUnpublished
In directory since2026-05-022026-07-05
operationalpartialdownno data

NASA APOD vs Perplexity AI API: common questions

Which is more reliable, NASA APOD or Perplexity AI API?

Both are neck-and-neck — NASA APOD and Perplexity AI API each measure 0.0% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.

Do NASA APOD and Perplexity AI API need an API key?

Both ask you to authenticate — NASA APOD uses an API key and Perplexity AI API uses an API key. Each key is free to obtain; the Auth and Card-required rows above spell out the signup terms.

Can I call NASA APOD and Perplexity AI API from the browser?

Yes — both NASA APOD and Perplexity AI API 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 NASA APOD and Perplexity AI API free for commercial use?

NASA APOD allows commercial use on its free tier, and Perplexity AI 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.