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Data.parliament.uk API vs SnapshotAPI

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

APIData.parliament.uk APINEW—SnapshotAPINEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
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 SnapshotAPI: common questions

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

On our scheduled checks, SnapshotAPI leads on measured uptime — Data.parliament.uk API at —% versus SnapshotAPI at —% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Do Data.parliament.uk API and SnapshotAPI need an API key?

Both ask you to authenticate — Data.parliament.uk API uses an API key and SnapshotAPI 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 SnapshotAPI from the browser?

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

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