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NASA APOD vs Replicate

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

APINASA APODDEAD0ReplicateDEAD0
Uptime · 30d
Uptime · 90d0.0%0.0%
Uptime · 30d0.0%0.0%
P50 · ms——
P95 · ms——
AuthapiKeyapiKey
CORSyesno
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 Replicate: common questions

Which is more reliable, NASA APOD or Replicate?

Both are neck-and-neck — NASA APOD and Replicate 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 Replicate need an API key?

Both ask you to authenticate — NASA APOD uses an API key and Replicate 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 Replicate from the browser?

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

Are NASA APOD and Replicate free for commercial use?

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