ClinicalTrials.gov vs OpenLigaDB
Same instrument, two spec sheets — measured, not claimed.
ClinicalTrials.gov vs OpenLigaDB: common questions
Which is more reliable, ClinicalTrials.gov or OpenLigaDB?
Both are neck-and-neck — ClinicalTrials.gov and OpenLigaDB 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, ClinicalTrials.gov or OpenLigaDB?
ClinicalTrials.gov has the lower median latency in our checks — ClinicalTrials.gov responds in 138 ms versus OpenLigaDB at 395 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 ClinicalTrials.gov and OpenLigaDB need an API key?
Neither needs a paid key — ClinicalTrials.gov is callable with no signup, and OpenLigaDB is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call ClinicalTrials.gov and OpenLigaDB from the browser?
Yes — both ClinicalTrials.gov and OpenLigaDB 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 ClinicalTrials.gov and OpenLigaDB free for commercial use?
ClinicalTrials.gov has unclear commercial terms, and OpenLigaDB 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.