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GOV.UK Pay API vs ValueRay

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

APIGOV.UK Pay APINEW—ValueRayNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree — limits not published
Rate limitUnpublished50 req/window · 49 remaining
In directory since2026-07-052026-07-05
operationalpartialdownno data

GOV.UK Pay API vs ValueRay: common questions

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

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

ValueRay needs no key, while GOV.UK Pay API requires a free API key. If you want to start calling without signup, reach for ValueRay first.

Can I call GOV.UK Pay API and ValueRay from the browser?

Only ValueRay is browser-friendly — it returns CORS headers over HTTPS. GOV.UK Pay API needs a server-side call or proxy, so factor that into which one fits a front-end project.

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

GOV.UK Pay API has unclear commercial terms, and ValueRay 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.