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Simpsons Character API vs User Agent Lookup API

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

APISimpsons Character APIHEALTHY91User Agent Lookup APIHEALTHY96
Uptime · 30d
Uptime · 90d88.2%100%
Uptime · 30d88.3%100%
P50 · ms123426
P95 · ms1886764
Authnonenone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Simpsons Character API vs User Agent Lookup API: common questions

Which is more reliable, Simpsons Character API or User Agent Lookup API?

On our scheduled checks, User Agent Lookup API leads on measured uptime — Simpsons Character API at 88.2% versus User Agent Lookup API at 100% 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, Simpsons Character API or User Agent Lookup API?

Simpsons Character API has the lower median latency in our checks — Simpsons Character API responds in 123 ms versus User Agent Lookup API at 426 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 Simpsons Character API and User Agent Lookup API need an API key?

Neither needs a paid key — Simpsons Character API is callable with no signup, and User Agent Lookup API is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Simpsons Character API and User Agent Lookup API from the browser?

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

Are Simpsons Character API and User Agent Lookup API free for commercial use?

Simpsons Character API has unclear commercial terms, and User Agent Lookup 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.