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ddownload vs PyPI

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

APIddownloadREACHABLE100PyPIHEALTHY100
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms36546
P95 · ms792446
AuthapiKeynone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

ddownload vs PyPI: common questions

Which is more reliable, ddownload or PyPI?

Both are neck-and-neck — ddownload and PyPI each measure 100% 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.

Which is faster, ddownload or PyPI?

PyPI has the lower median latency in our checks — ddownload responds in 365 ms versus PyPI at 46 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 ddownload and PyPI need an API key?

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

Can I call ddownload and PyPI from the browser?

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

Are ddownload and PyPI free for commercial use?

ddownload has unclear commercial terms, and PyPI 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.