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Currents vs Datamuse

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

APICurrentsNEW—DatamuseNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — key may be requiredFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Currents vs Datamuse: common questions

Which is more reliable, Currents or Datamuse?

On our scheduled checks, Datamuse leads on measured uptime — Currents at —% versus Datamuse 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 Currents and Datamuse need an API key?

Datamuse needs no key, while Currents requires a free API key. If you want to start calling without signup, reach for Datamuse first.

Can I call Currents and Datamuse from the browser?

Only Datamuse is browser-friendly — it returns CORS headers over HTTPS. Currents needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are Currents and Datamuse free for commercial use?

Currents has unclear commercial terms, and Datamuse 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.