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Abstract API vs Vector Express v2.0

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

APIAbstract APIHEALTHY89Vector Express v2.0HEALTHY91
Uptime · 30d
Uptime · 90d99.02%100%
Uptime · 30d98.3%100%
P50 · ms700613
P95 · ms16561662
AuthapiKeynone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key may be required for productionFree
Rate limitUnpublished5 req/window · 4 remaining · resets 1783513379
In directory since2026-07-052026-07-05
operationalpartialdownno data

Abstract API vs Vector Express v2.0: common questions

Which is more reliable, Abstract API or Vector Express v2.0?

On our scheduled checks, Vector Express v2.0 leads on measured uptime — Abstract API at 99.02% versus Vector Express v2.0 at 100% 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, Abstract API or Vector Express v2.0?

Vector Express v2.0 has the lower median latency in our checks — Abstract API responds in 700 ms versus Vector Express v2.0 at 613 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 Abstract API and Vector Express v2.0 need an API key?

Vector Express v2.0 needs no key, while Abstract API requires a free API key. If you want to start calling without signup, reach for Vector Express v2.0 first.

Can I call Abstract API and Vector Express v2.0 from the browser?

Only Abstract API is browser-friendly — it returns CORS headers over HTTPS. Vector Express v2.0 needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are Abstract API and Vector Express v2.0 free for commercial use?

Abstract API has unclear commercial terms, and Vector Express v2.0 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.