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GOV.UK Pay API vs Mboum API

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

APIGOV.UK Pay APIDEAD0Mboum APIDEAD0
Uptime · 30d
Uptime · 90d0.0%0.0%
Uptime · 30d0.0%0.0%
P50 · ms——
P95 · ms——
AuthapiKeyapiKey
CORSnoyes
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

GOV.UK Pay API vs Mboum API: common questions

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

Both are neck-and-neck — GOV.UK Pay API and Mboum 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 GOV.UK Pay API and Mboum API need an API key?

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

Only Mboum API 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 Mboum API free for commercial use?

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