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Data.parliament.uk API vs HasData: Structured Web Data APIs

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

APIData.parliament.uk APIHEALTHY84HasData: Structured Web Data APIsHEALTHY70
Uptime · 30d
Uptime · 90d92.2%100%
Uptime · 30d91.7%100%
P50 · ms678768
P95 · ms41641464
AuthapiKeyapiKey
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Data.parliament.uk API vs HasData: Structured Web Data APIs: common questions

Which is more reliable, Data.parliament.uk API or HasData: Structured Web Data APIs?

On our scheduled checks, HasData: Structured Web Data APIs leads on measured uptime — Data.parliament.uk API at 92.2% versus HasData: Structured Web Data APIs 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 HasData: Structured Web Data APIs?

Data.parliament.uk API has the lower median latency in our checks — Data.parliament.uk API responds in 678 ms versus HasData: Structured Web Data APIs at 768 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 HasData: Structured Web Data APIs need an API key?

Both ask you to authenticate — Data.parliament.uk API uses an API key and HasData: Structured Web Data APIs 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 Data.parliament.uk API and HasData: Structured Web Data APIs from the browser?

Yes — both Data.parliament.uk API and HasData: Structured Web Data APIs 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 HasData: Structured Web Data APIs free for commercial use?

Data.parliament.uk API has unclear commercial terms, and HasData: Structured Web Data APIs 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.