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arcsecond.io vs Jina AI

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

APIarcsecond.ioHEALTHY92Jina AIHEALTHY93
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms587255
P95 · ms1578981
AuthnoneapiKey
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — API key may be required for production
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

arcsecond.io vs Jina AI: common questions

Which is more reliable, arcsecond.io or Jina AI?

Both are neck-and-neck — arcsecond.io and Jina AI 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, arcsecond.io or Jina AI?

Jina AI has the lower median latency in our checks — arcsecond.io responds in 587 ms versus Jina AI at 255 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 arcsecond.io and Jina AI need an API key?

arcsecond.io needs no key, while Jina AI requires a free API key. If you want to start calling without signup, reach for arcsecond.io first.

Can I call arcsecond.io and Jina AI from the browser?

Yes — both arcsecond.io and Jina AI 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 arcsecond.io and Jina AI free for commercial use?

arcsecond.io has unclear commercial terms, and Jina AI 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.