Micro User Service vs Stytch

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

Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms
P95 · ms
AuthapiKeyapiKey
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — key may be requiredFree tier — key may be required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Micro User Service vs Stytch: common questions

Which is more reliable, Micro User Service or Stytch?

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

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

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

Are Micro User Service and Stytch free for commercial use?

Micro User Service has unclear commercial terms, and Stytch 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.