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Free Dictionary API vs HasData: Structured Web Data APIs

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

APIFree Dictionary APIHEALTHY90HasData: Structured Web Data APIsHEALTHY70
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms674768
P95 · ms21961464
AuthnoneapiKey
CORSyesyes
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

Free Dictionary API vs HasData: Structured Web Data APIs: common questions

Which is more reliable, Free Dictionary API or HasData: Structured Web Data APIs?

Both are neck-and-neck — Free Dictionary API and HasData: Structured Web Data APIs 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, Free Dictionary API or HasData: Structured Web Data APIs?

Free Dictionary API has the lower median latency in our checks — Free Dictionary API responds in 674 ms versus HasData: Structured Web Data APIs at 768 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 Free Dictionary API and HasData: Structured Web Data APIs need an API key?

Free Dictionary API needs no key, while HasData: Structured Web Data APIs requires a free API key. If you want to start calling without signup, reach for Free Dictionary API first.

Can I call Free Dictionary API and HasData: Structured Web Data APIs from the browser?

Yes — both Free Dictionary API and HasData: Structured Web Data APIs 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 Free Dictionary API and HasData: Structured Web Data APIs free for commercial use?

Free Dictionary API has unclear commercial terms, and HasData: Structured Web Data APIs 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.