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InternetDB API vs PubMed E-utilities

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

APIInternetDB APIHEALTHY99PubMed E-utilitiesHEALTHY68
Uptime · 30d
Uptime · 90d100%75.5%
Uptime · 30d100%66.7%
P50 · ms1331259
P95 · ms22604903
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — limits not published
Rate limitUnpublished3 req/window · 1 remaining
In directory since2026-07-052026-07-05
operationalpartialdownno data

InternetDB API vs PubMed E-utilities: common questions

Which is more reliable, InternetDB API or PubMed E-utilities?

On our scheduled checks, InternetDB API leads on measured uptime — InternetDB API at 100% versus PubMed E-utilities at 75.5% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Which is faster, InternetDB API or PubMed E-utilities?

InternetDB API has the lower median latency in our checks — InternetDB API responds in 133 ms versus PubMed E-utilities at 1259 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.

Do InternetDB API and PubMed E-utilities need an API key?

Neither needs a paid key — InternetDB API is callable with no signup, and PubMed E-utilities is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call InternetDB API and PubMed E-utilities from the browser?

Yes — both InternetDB API and PubMed E-utilities 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 InternetDB API and PubMed E-utilities free for commercial use?

InternetDB API has unclear commercial terms, and PubMed E-utilities 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.