Micro User Service vs The Guardian

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

Uptime · 30d
Uptime · 90d18.6%98.0%
Uptime · 30d0.0%98.3%
P50 · ms231742
P95 · ms8272726
AuthapiKeyapiKey
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — key may be requiredFree developer key — registration required
Rate limitUnpublished5000 calls/day (developer tier)
In directory since2026-07-052026-07-05
operationalpartialdownno data

Micro User Service vs The Guardian: common questions

Which is more reliable, Micro User Service or The Guardian?

On our scheduled checks, The Guardian leads on measured uptime — Micro User Service at 18.6% versus The Guardian at 98.0% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Which is faster, Micro User Service or The Guardian?

Micro User Service has the lower median latency in our checks — Micro User Service responds in 231 ms versus The Guardian at 742 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.

Do Micro User Service and The Guardian need an API key?

Both ask you to authenticate — Micro User Service uses an API key and The Guardian 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 Micro User Service and The Guardian from the browser?

Only The Guardian is browser-friendly — it returns CORS headers over HTTPS. Micro User Service needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are Micro User Service and The Guardian free for commercial use?

Micro User Service has unclear commercial terms, and The Guardian 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.