OpenAPI Generator Online vs SampleAPIs

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

Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms222471
P95 · ms598984
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — limits not published
Rate limitSee documentation5000 req/window · 3876 remaining · resets 1783516346
In directory since2026-07-052026-07-05
operationalpartialdownno data

OpenAPI Generator Online vs SampleAPIs: common questions

Which is more reliable, OpenAPI Generator Online or SampleAPIs?

Both are neck-and-neck — OpenAPI Generator Online and SampleAPIs each measure 100% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.

Which is faster, OpenAPI Generator Online or SampleAPIs?

OpenAPI Generator Online has the lower median latency in our checks — OpenAPI Generator Online responds in 222 ms versus SampleAPIs at 471 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 OpenAPI Generator Online and SampleAPIs need an API key?

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

Can I call OpenAPI Generator Online and SampleAPIs from the browser?

Yes — both OpenAPI Generator Online and SampleAPIs 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 OpenAPI Generator Online and SampleAPIs free for commercial use?

OpenAPI Generator Online has unclear commercial terms, and SampleAPIs 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.