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Financial Data vs GOV.UK Pay API

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

APIFinancial DataDEAD0GOV.UK Pay APIDEAD0
Uptime · 30d
Uptime · 90d0.0%0.0%
Uptime · 30d0.0%0.0%
P50 · ms——
P95 · ms——
AuthapiKeyapiKey
CORSnono
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

Financial Data vs GOV.UK Pay API: common questions

Which is more reliable, Financial Data or GOV.UK Pay API?

Both are neck-and-neck — Financial Data and GOV.UK Pay API each measure 0.0% 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.

Do Financial Data and GOV.UK Pay API need an API key?

Both ask you to authenticate — Financial Data uses an API key and GOV.UK Pay API 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 Financial Data and GOV.UK Pay API from the browser?

Neither sends browser-friendly CORS headers reliably, so call Financial Data and GOV.UK Pay API from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.

Are Financial Data and GOV.UK Pay API free for commercial use?

Financial Data has unclear commercial terms, and GOV.UK Pay 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.