Datamuse vs GLEIF LEI API
Same instrument, two spec sheets — measured, not claimed.
Datamuse vs GLEIF LEI API: common questions
Which is more reliable, Datamuse or GLEIF LEI API?
On our scheduled checks, GLEIF LEI API leads on measured uptime — Datamuse at 92.2% versus GLEIF LEI API 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 GLEIF LEI API?
Datamuse has the lower median latency in our checks — Datamuse responds in 180 ms versus GLEIF LEI API at 1052 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 GLEIF LEI API need an API key?
Neither needs a paid key — Datamuse is callable with no signup, and GLEIF LEI API is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call Datamuse and GLEIF LEI API from the browser?
Only GLEIF LEI API 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 GLEIF LEI API free for commercial use?
Datamuse has unclear commercial terms, and GLEIF LEI API 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.