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GOV.UK Pay API vs World Trading Data

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

APIGOV.UK Pay APINEW—World Trading DataNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeyapiKey
CORSnono
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree tier — API key may be required for production
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

GOV.UK Pay API vs World Trading Data: common questions

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

On our scheduled checks, World Trading Data leads on measured uptime — GOV.UK Pay API at —% versus World Trading Data 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 GOV.UK Pay API and World Trading Data need an API key?

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

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

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

GOV.UK Pay API has unclear commercial terms, and World Trading Data 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.