Datamuse vs Eden

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

Uptime · 30d
Uptime · 90d92.2%100%
Uptime · 30d86.7%100%
P50 · ms180475
P95 · ms926926
AuthnoneapiKey
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Datamuse vs Eden: common questions

Which is more reliable, Datamuse or Eden?

On our scheduled checks, Eden leads on measured uptime — Datamuse at 92.2% versus Eden 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, Datamuse or Eden?

Datamuse has the lower median latency in our checks — Datamuse responds in 180 ms versus Eden at 475 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 Datamuse and Eden need an API key?

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

Can I call Datamuse and Eden from the browser?

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

Are Datamuse and Eden free for commercial use?

Datamuse has unclear commercial terms, and Eden 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.