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Rejection Reason Generator vs JokeAPI

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

APIRejection Reason GeneratorUNMONITORED—JokeAPINEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified (open-source project)
Free tierFree — limits not publishedFree — no key
Rate limitUnpublished120 requests/minute per IP (per jokeapi.dev docs)
In directory since2026-07-052026-07-05
operationalpartialdownno data

Rejection Reason Generator vs JokeAPI: common questions

Which is more reliable, Rejection Reason Generator or JokeAPI?

Only JokeAPI is on our probe schedule so far (—% uptime over 90 days). The other is catalogued but not yet live-checked, so we can't compare measured reliability head-to-head — check the uncovered API's own status page for now.

Do Rejection Reason Generator and JokeAPI need an API key?

Neither needs a paid key — Rejection Reason Generator is callable with no signup, and JokeAPI is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Rejection Reason Generator and JokeAPI from the browser?

Yes — both Rejection Reason Generator and JokeAPI 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 Rejection Reason Generator and JokeAPI free for commercial use?

Rejection Reason Generator has unclear commercial terms, and JokeAPI 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.