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Datamuse vs Microlink.io

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

APIDatamuseNEW—Microlink.ioNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedN/A — returns metadata extracted from the URL you pass
Free tierFree — limits not publishedFree tier — no key required (Pro plans need a key)
Rate limitUnpublishedFree tier is rate-limited per day (see pricing)
In directory since2026-07-052026-07-05
operationalpartialdownno data

Datamuse vs Microlink.io: common questions

Which is more reliable, Datamuse or Microlink.io?

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

Neither needs a paid key — Datamuse is callable with no signup, and Microlink.io is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Datamuse and Microlink.io from the browser?

Yes — both Datamuse and Microlink.io 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 Datamuse and Microlink.io free for commercial use?

Datamuse has unclear commercial terms, and Microlink.io 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.