Callook.info vs GLEIF LEI API
Same instrument, two spec sheets — measured, not claimed.
Callook.info vs GLEIF LEI API: common questions
Which is more reliable, Callook.info or GLEIF LEI API?
Both are neck-and-neck — Callook.info and GLEIF LEI API 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, Callook.info or GLEIF LEI API?
Callook.info has the lower median latency in our checks — Callook.info responds in 437 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 Callook.info and GLEIF LEI API need an API key?
Neither needs a paid key — Callook.info 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 Callook.info and GLEIF LEI API from the browser?
Yes — both Callook.info and GLEIF LEI API 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 Callook.info and GLEIF LEI API free for commercial use?
Callook.info 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.