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Data.parliament.uk API vs IPDetails.io API

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

APIData.parliament.uk APIHEALTHY84IPDetails.io APIHEALTHY94
Uptime · 30d
Uptime · 90d92.2%100%
Uptime · 30d91.7%100%
P50 · ms678515
P95 · ms41641072
AuthapiKeynone
CORSyesyes
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 IPDetails.io API: common questions

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

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

IPDetails.io API has the lower median latency in our checks — Data.parliament.uk API responds in 678 ms versus IPDetails.io API at 515 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 IPDetails.io API need an API key?

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

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

Yes — both Data.parliament.uk API and IPDetails.io API 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 Data.parliament.uk API and IPDetails.io API free for commercial use?

Data.parliament.uk API has unclear commercial terms, and IPDetails.io API 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.