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Bank of Russia vs ExchangeRate-API (open)

Same instrument, two spec sheets — measured, not claimed.

APIBank of RussiaHEALTHY91ExchangeRate-API (open)HEALTHY98
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms648221
P95 · ms43391091
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverified (underlying rates are official Bank of Russia public data)Unverified
Free tierFree — limits not publishedFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Bank of Russia vs ExchangeRate-API (open): common questions

Which is more reliable, Bank of Russia or ExchangeRate-API (open)?

Both are neck-and-neck — Bank of Russia and ExchangeRate-API (open) 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, Bank of Russia or ExchangeRate-API (open)?

ExchangeRate-API (open) has the lower median latency in our checks — Bank of Russia responds in 648 ms versus ExchangeRate-API (open) at 221 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 Bank of Russia and ExchangeRate-API (open) need an API key?

Neither needs a paid key — Bank of Russia is callable with no signup, and ExchangeRate-API (open) is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Bank of Russia and ExchangeRate-API (open) from the browser?

Yes — both Bank of Russia and ExchangeRate-API (open) 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 Bank of Russia and ExchangeRate-API (open) free for commercial use?

Bank of Russia has unclear commercial terms, and ExchangeRate-API (open) 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.