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MotaWord API vs NASA APOD

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

APIMotaWord APIDEAD0NASA APODDEAD0
Uptime · 30d
Uptime · 90d0.0%0.0%
Uptime · 30d0.0%0.0%
P50 · ms——
P95 · ms——
AuthapiKeyapiKey
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearyes
Data licenseUnverifiedPublic domain (US Gov)
Free tierFree tier — API key required1,000 req/hour with free key
Rate limitUnpublishedDEMO_KEY: 30/hour, 50/day
In directory since2026-07-052026-05-02
operationalpartialdownno data

MotaWord API vs NASA APOD: common questions

Which is more reliable, MotaWord API or NASA APOD?

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

Both ask you to authenticate — MotaWord 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 MotaWord API and NASA APOD from the browser?

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

MotaWord 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.