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Abstract API vs Yes-as-a-Service

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

APIAbstract APINEW—Yes-as-a-ServiceNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key may be required for productionFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Abstract API vs Yes-as-a-Service: common questions

Which is more reliable, Abstract API or Yes-as-a-Service?

On our scheduled checks, Yes-as-a-Service leads on measured uptime — Abstract API at —% versus Yes-as-a-Service 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 Abstract API and Yes-as-a-Service need an API key?

Yes-as-a-Service needs no key, while Abstract API requires a free API key. If you want to start calling without signup, reach for Yes-as-a-Service first.

Can I call Abstract API and Yes-as-a-Service from the browser?

Yes — both Abstract API and Yes-as-a-Service 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 Abstract API and Yes-as-a-Service free for commercial use?

Abstract API has unclear commercial terms, and Yes-as-a-Service 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.