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TensorFeed vs NASA APOD

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

APITensorFeedNEW—NASA APODHEALTHY—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearyes
Data licenseUnverifiedPublic domain (US Gov)
Free tierFree — no key (static JSON feed endpoints)1,000 req/hour with free key
Rate limit120 req/window · 119 remaining · resets 60DEMO_KEY: 30/hour, 50/day
In directory since2026-07-052026-05-02
operationalpartialdownno data

TensorFeed vs NASA APOD: common questions

Which is more reliable, TensorFeed or NASA APOD?

On our scheduled checks, NASA APOD leads on measured uptime — TensorFeed at —% versus NASA APOD 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 TensorFeed and NASA APOD need an API key?

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

Can I call TensorFeed and NASA APOD from the browser?

Yes — both TensorFeed and NASA APOD 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 TensorFeed and NASA APOD free for commercial use?

TensorFeed has unclear commercial terms, and NASA APOD allows commercial use on its free tier. 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.