Exchange Rates API vs Unirate
Same instrument, two spec sheets — measured, not claimed.
Exchange Rates API vs Unirate: common questions
Which is more reliable, Exchange Rates API or Unirate?
Both are neck-and-neck — Exchange Rates API and Unirate 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, Exchange Rates API or Unirate?
Unirate has the lower median latency in our checks — Exchange Rates API responds in 810 ms versus Unirate at 324 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 Exchange Rates API and Unirate need an API key?
Exchange Rates API needs no key, while Unirate requires a free API key. If you want to start calling without signup, reach for Exchange Rates API first.
Can I call Exchange Rates API and Unirate from the browser?
Yes — both Exchange Rates API and Unirate 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 Exchange Rates API and Unirate free for commercial use?
Exchange Rates API has unclear commercial terms, and Unirate 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.