Fixer vs CoinDesk BPI
Same instrument, two spec sheets — measured, not claimed.
Fixer vs CoinDesk BPI: common questions
Which is more reliable, Fixer or CoinDesk BPI?
Only CoinDesk BPI is on our probe schedule so far (—% uptime over 90 days). The other is catalogued but not yet live-checked, so we can't compare measured reliability head-to-head — check the uncovered API's own status page for now.
Do Fixer and CoinDesk BPI need an API key?
CoinDesk BPI needs no key, while Fixer requires a free API key. If you want to start calling without signup, reach for CoinDesk BPI first.
Can I call Fixer and CoinDesk BPI from the browser?
Yes — both Fixer and CoinDesk BPI 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 Fixer and CoinDesk BPI free for commercial use?
Fixer has unclear commercial terms, and CoinDesk BPI is personal/non-commercial only. 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.