Forex API for Financial Apps
Finance tools hold themselves to a higher bar: users compare your numbers against their broker. That means fresh rates, honest timestamps, and reproducible history — the exact combination this API was built around.
Portfolio valuation
Value multi-currency holdings with one filtered latest call — every currency your users hold, in a single response.
Reproducible statements
Monthly statements need the same rate every time they're regenerated. Dated historical rates are immutable once stored.
Trend context
Ten years of OHLC supports the 'is this normal?' charts users expect next to any big number.
The endpoints you'll use
/api/v1/latestLive portfolio valuation/api/v1/historicalStatement-date rates/api/v1/pair-historyOHLC trend chartsValue a mixed portfolio in USD
GET /api/v1/latest?base=USD&symbols=EUR,GBP,JPY,CHF
{ "data": { "rates": {
"EUR": 0.8756, "GBP": 0.7467,
"JPY": 162.55, "CHF": 0.8083
} } }
// €25,000 held = 25000 / 0.8756 = $28,552 USDFAQ
Where do the rates come from?
A live institutional feed refreshed every 20 seconds, with snapshots stored at 5-minute and daily granularity — every response tells you exactly which snapshot it used.
How is user privacy handled in request logs?
Request logs store salted IP hashes, never raw addresses, and API keys are stored only as SHA-256 hashes.
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Related: Currency API for SaaS · Exchange Rate API for Ecommerce · Exchange Rate API for Dashboards