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Data.parliament.uk API vs Quandl

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

APIData.parliament.uk APIHEALTHY84QuandlHEALTHY88
Uptime · 30d
Uptime · 90d92.2%100%
Uptime · 30d91.7%100%
P50 · ms678823
P95 · ms41643525
AuthapiKeynone
CORSyesno
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

Data.parliament.uk API vs Quandl: common questions

Which is more reliable, Data.parliament.uk API or Quandl?

On our scheduled checks, Quandl leads on measured uptime — Data.parliament.uk API at 92.2% versus Quandl at 100% 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, Data.parliament.uk API or Quandl?

Data.parliament.uk API has the lower median latency in our checks — Data.parliament.uk API responds in 678 ms versus Quandl at 823 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 Data.parliament.uk API and Quandl need an API key?

Quandl needs no key, while Data.parliament.uk API requires a free API key. If you want to start calling without signup, reach for Quandl first.

Can I call Data.parliament.uk API and Quandl from the browser?

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

Are Data.parliament.uk API and Quandl free for commercial use?

Data.parliament.uk API has unclear commercial terms, and Quandl 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.