About exrate
exrate aggregates exchange-rate publications from 9 national central banks into a single consistent format. We publish what the bank published — no transforms, no interpolation, no spread.
Methodology
We ingest each central bank's published feed once per business day, store the values verbatim in Cloudflare D1, and expose them via REST and MCP. We do not transform, smooth or interpolate. The 'previous business day' fallback used by the calculator is a deterministic lookup against the stored series — no estimation involved.
Sources
- National Bank of Poland (NBP) — https://static.nbp.pl/dane/kursy/Archiwum/
- National Bank of Georgia (NBG) — https://nbg.gov.ge/en/monetary-policy/currency
- European Central Bank (ECB) — https://www.ecb.europa.eu/stats/policy_and_exchange_rates/euro_reference_exchange_rates/
- Czech National Bank (CNB) — https://www.cnb.cz/en/financial-markets/foreign-exchange-market/central-bank-exchange-rate-fixing/central-bank-exchange-rate-fixing/
- Danmarks Nationalbank (DN) — https://www.nationalbanken.dk/en/statistics/exchange-rates
- Sveriges Riksbank (SRB) — https://www.riksbank.se/en-gb/statistics/interest-and-exchange-rates/
- National Bank of Ukraine (NBU) — https://bank.gov.ua/NBUStatService/v1/statdirectory/exchange?json
- Central Bank of Russia (CBR) — https://www.cbr.ru/scripts/XML_daily.asp
- Bank of Israel (BOI) — https://boi.org.il/PublicApi/GetExchangeRates
Contact & legal
Questions, corrections, partnership requests: contacts@banks-rates.com. Data and service are provided as-is, with no warranty. The official source for any rate remains the central bank's own publication.