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Diffbot API vs NASA APOD

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

APIDiffbot APIHEALTHY80NASA APODDEAD0
Uptime · 30d
Uptime · 90d100%0.0%
Uptime · 30d100%0.0%
P50 · ms1144—
P95 · ms4885—
AuthapiKeyapiKey
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearyes
Data licenseUnverifiedPublic domain (US Gov)
Free tierFree tier — API key may be required for production1,000 req/hour with free key
Rate limitUnpublishedDEMO_KEY: 30/hour, 50/day
In directory since2026-07-052026-05-02
operationalpartialdownno data

Diffbot API vs NASA APOD: common questions

Which is more reliable, Diffbot API or NASA APOD?

On our scheduled checks, Diffbot API leads on measured uptime — Diffbot API at 100% versus NASA APOD at 0.0% 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 Diffbot API and NASA APOD need an API key?

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

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

Diffbot API 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.