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APIs.guru vs Simpsons Character API

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

APIAPIs.guruHEALTHY97Simpsons Character APIHEALTHY91
Uptime · 30d
Uptime · 90d100%88.2%
Uptime · 30d100%88.3%
P50 · ms266123
P95 · ms14211886
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree and open, no keyFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

APIs.guru vs Simpsons Character API: common questions

Which is more reliable, APIs.guru or Simpsons Character API?

On our scheduled checks, APIs.guru leads on measured uptime — APIs.guru at 100% versus Simpsons Character API at 88.2% 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, APIs.guru or Simpsons Character API?

Simpsons Character API has the lower median latency in our checks — APIs.guru responds in 266 ms versus Simpsons Character API at 123 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 APIs.guru and Simpsons Character API need an API key?

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

Can I call APIs.guru and Simpsons Character API from the browser?

Yes — both APIs.guru and Simpsons Character 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 APIs.guru and Simpsons Character API free for commercial use?

APIs.guru has unclear commercial terms, and Simpsons Character 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.