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Micro User Service vs WhatIsMyIP API

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

APIMicro User ServiceNEW—WhatIsMyIP APINEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — key may be requiredFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Micro User Service vs WhatIsMyIP API: common questions

Which is more reliable, Micro User Service or WhatIsMyIP API?

On our scheduled checks, WhatIsMyIP API leads on measured uptime — Micro User Service at —% versus WhatIsMyIP API 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 Micro User Service and WhatIsMyIP API need an API key?

WhatIsMyIP API needs no key, while Micro User Service requires a free API key. If you want to start calling without signup, reach for WhatIsMyIP API first.

Can I call Micro User Service and WhatIsMyIP API from the browser?

Yes — both Micro User Service and WhatIsMyIP API 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 Micro User Service and WhatIsMyIP API free for commercial use?

Micro User Service has unclear commercial terms, and WhatIsMyIP 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.