Which currencies are real-time
Every response is stamped with its source, so you always know what you got. 29 of 30 currencies are real-time right now (updated about every 60 seconds through the trading week). 1 are ECB/FRED daily-reference — updated once per business day; between fixes the rate does not update, and they carry the prior fix through the weekend. A pair is only as fresh as its slowest leg, so any pair containing a daily-reference currency is daily-reference too. This split is measured on every page load, not hardcoded — when a source degrades, the number drops.
Measured just now — 2026-08-06 07:44:49 UTC.
All 465 servable currency pairs
Every unique pair across the catalog, grouped by base currency (majors first). Native pairs quote directly against USD; cross pairs are triangulated through USD. A pair is Live only when every non-USD leg is real-time right now — otherwise it's Delayed, same stalest-leg rule the API uses to stamp responses.